Neuroscience of Emotions & Tools for Improving Emotion Regulation | Dr. Ralph Adolphs

22:58Andrew Huberman:At risk of taking us in a philosophical direction, I'd like to actually ask a biological, psychological question. Given these criteria, you know, priority, valence, scalability, and persistence, but really focusing mainly on priority, I think all of us have had the experience of an emotion coming on, but not in its kind of overtaking maximal form. Like, okay, we feel ourselves getting annoyed and we can observe the emotion growing. The arousal state is familiar to us. We understand. Let's assume in this example that we understand why it's happening. Maybe you're in line at the store and the person ahead of you is taking everybody's time by doing something that's really unnecessary and kind of obnoxious to us in that moment.

23:38Andrew Huberman:And so our frustration is rising and we are observing the emotion, even though the emotion is us, right? It's within us. And then at some point, we might blurt something out or we might feel compelled that we have to just say, excuse me, like, could this maybe be taken care of something? But you have some control. You have some control. And there's this almost like running together of two consciousnesses. Like there's like two of us in there at the same time, observing self, observing the outside world. And then at some point, the prioritization gets to the point where like we just do something.

24:10Andrew Huberman:And sometimes it's a decision and sometimes it overtakes us. Now, at the opposite extreme, we've all observed. You can just go on X, the social media platform. And for some reason, the algorithm likes to serve up a lot of examples of people like on planes losing it, people going unhinged. Like, you know, I like people just like completely melting down. And it's very, in our language, hypothalamic, right? And so people are drawn to that. I have an antidote to those people. They should take ice baths. I can tell you more. They should take ice baths. I think this helps. Seriously. Yeah, well, ice baths.

24:39Andrew Huberman:Yeah, let's definitely talk about ice baths and ultra races because you're training for one. No, but I think what you said is exactly right and extremely important for humans and probably unique to humans as opposed to other animals, which is that we can be conscious of and monitor our own emotions. And by doing so, we can regulate them to some extent. And so emotion regulation and control and monitoring emotion, being aware of what emotion you have, those two go hand in hand. And your Stanford colleague, you know, James Gross, spawned this huge field in the 90s, I guess, when it started of emotion regulation that is now huge.

25:17I just finished my term as co-editor of this journal, Affect of Science. I would say like a quarter or so or a third of the submissions are about emotion regulation. It is so important in humans. And most of pathologies and difficulties about emotions are not about the emotion per se. It's about our ability or disability to control them, to regulate them.

25:42Andrew Huberman:If you don't mind, because of your understanding of emotions and states and neuroscience, but also your experience as a human in the world, has anything you've learned changed the way that you watch your emotions grow, decide when to step in, when not to step in? And you don't seem like an impulsive person. So we're not, most people aren't. We're not talking about pathology here. And I'll cede this question by saying, you know, I have a few friends who were in tier one special operations. And, you know, that's high risk, high consequence work. We've had Alex Honnold on the podcast, high risk, high consequence endeavors.

26:14And they all say the same thing, which are that emotions cloud logical judgment.

26:19Andrew Huberman:So they're somehow far from emotions or their emotions don't get prioritized. But of course, all of these people that come to mind have healthy marriages now, healthy families. They're loving people. They have anger. They have emotions, but they've sort of categorized emotions as cloud judgment in the professional or peak performance context. Therefore, they don't allow them to be prioritized. Sounds a little bit robotic. Sounds a little bit mechanical, quote unquote, on the spectrum. People will say these things, right? Right. But in some ways, provided they're allowed to allow themselves to be emotional, emotional and let emotions, quote unquote, take over in the right context.

27:01Andrew Huberman:That's kind of the ideal circumstance. Right. Yeah. So what do you know that allowed that has impacted the way that you think about emotion regulation that perhaps people could consider, if not benefit from? Yeah, I think it's a mixture. On the one hand, you absolutely need emotions. If you have no emotions, as we know from Antonio Damasio's original work in his book Descartes' Error, which he put out just as I was starting as a postdoc in Iowa in 1994, I think. you know, if you have massive frontal lobe lesions that make it the case that you're no longer emotionally responding to stimuli, the consequences are devastating, which is that you cannot make decisions, complex decisions in your life.

27:40You can't organize your life. You're not motivated to take the right path through life because you don't feel one way or the other about the different options that are available. So it's clear that not having emotions is very bad. And certainly, if you're out facing the bear, which may not happen to too many people these days, that would be very bad. On the other hand, being able to regulate them and control them is definitely a human skill that's very important and that helps you a lot. The first part is what you were talking about first earlier, which is the ability to monitor your emotions, to identify your emotions.

28:16I think Lisa Feldman Barrett actually first did the main work on this. It's a topic called emotional granularity. It's like how fine a grain can you conceptualize and be aware of your own emotions? And then once you're aware of them, you can bring various emotion regulation strategies, mostly cognitive reappraisal type of strategies to bear on the emotion and thereby, to some extent, control your emotions.

28:42Andrew Huberman:How important is it to use language to provide that granularity? I've certainly experienced like feeling a bunch of things around a particular scenario. And if you can't separate out the elements, it can feel overwhelming. People always say if you can name the emotion. But I find that a little tricky because sometimes it's not one emotion. It's a bunch of things. It's confusion. It's frustration. Are those the same thing? I don't know. You know, and I think many people, myself included, sometimes just like it just feels like too much, not because the emotion is so big, but because it's such a tangled jungle of where there isn't really language to disentangle it.

29:22Andrew Huberman:Absolutely, yeah. I don't think you need to put it into language. And I think people's strategies vary. Some people think in words, some people think in pictures. Most people are a mixture. And if you look at different languages, if you're French or German speaking like me, bilingual, we have different words for different emotions. but you need some sense of the concept, which I think the concepts for emotions are pretty much universal across languages. So, you know, there are all these different examples of emotion words from different languages, like schadenfreude is one that people know now.

29:56You know, joy at another person's misfortune from the German. Giegel, I think, is often trumpeted as another example. I forget what the culture is, but this is the emotion you feel if something is just unbearably cute. There's a great book. Tiffany Watt Smith has a book. I think it's called The Book of Human Emotions, which is basically like a little dictionary, an entry from A to Z of all the different emotion words in different languages. But the fact that we don't have a word for Giggle or for Schadenfreude in English, you perfectly well have the concept. I just described it to you. You have no problem understanding what the emotion is.

30:32And so I think as long as you have some concept which need not be put into words, some way to think about and differentiate the different emotions that are going on in you, that gives you a purchase on your ability to, to some extent, evaluate them and say, this is an emotion I want, or this is an emotion that I don't want, and then to act on it through various strategies, cognitive reappraisal, for example, or acceptance, depending on what your strategy is.

31:01Andrew Huberman:Yeah, the psychologists seem to disagree here because many people, some who've been on this podcast, all of whom are experts, will say, you know, if you don't allow yourself to feel the emotion, then it grows. And other people will say, well, if you focus on something, then it grows. And this is where I think neuroscience can be of great help because probably both things are true and it depends on the context. But yeah, that's exactly right. Maybe this is a good opportunity to talk about sort of dynamic attractor states, which is I don't throw out that language to confuse people. But there is this idea in neuroscience, right?

31:32Andrew Huberman:Like if you and I both talk about this cup and I slide it forward and then we start looking at it, and more and more brain circuits are going to be devoted to it. We could spend several hours. It's not a very interesting conversation. But if we do that about an emotion we feel because of something somebody said to us at work or online, I think we're all familiar with the idea that we can go down these rabbit holes within our own mind. Absolutely. And it's a very dangerous way to live. It is. Knowing that it exists perhaps can be helpful because it's almost like if you go far enough down a path, it's like a horror movie.

32:02Andrew Huberman:If you go far enough down a path, it's very hard to extract yourself. No, absolutely. Absolutely. I think, I mean, cognitive reappraisal or any other sort of complex reappraisal strategy for emotions, it is a double-edged sword and it's trainable. It's, as you say, if I really focus on, okay, now, you know, I'm starting to feel sad. I really don't want to feel sad. I really don't want to feel sad. I really don't want to feel sad. Well, the more I think about it, the sadder I get, right? Or same with anxiety. Some emotions are probably more prone to going down this rabbit hole than others. But again, it's a trainable skill that there are other ways of dealing with it where you can kind of just stop that process from going down at all.

32:38You want to stop it at the earliest front end. I mean, one quick answer to the question of what's the most successful strategy is the earlier you can stop that process, the better. And so in the first place, don't get yourself into a situation where you're going to be anxious or guilty or sad or whatever emotion you want to avoid. So situational avoidance, just in terms of structuring your environment, would be one strategy. And then once you're in it, I think it's idiosyncratic to a large extent. So you would have to figure out what works for you. But it's definitely trainable. Two parts are trainable.

33:09One is the specific strategy so you can do cognitive reappraisal without overthinking it and going down the rabbit hole and actually feeling the emotion even more. And the other one is just the strength and automaticity of control that you have, which brings me to the ice bath. Shall I briefly talk about the ice bath? Because this is relevant, actually. So I started doing these a while back. One of my former colleagues, Justin Feinstein, who now runs a float clinic on Maui. I forget how it came about but we were talking about floating ice baths and he mentioned you and he mentioned Wim Hof and said, you know, take a look at these guys and I saw Wim swimming in some frozen lake looked kind of interesting anyway, so I started doing ice baths some time ago they weren't that popular yet back then and now my wife bought on Amazon like a horse watering trough or some big thing insulated it

34:01Andrew Huberman:put it on the porch it's a lot safer than being out on a lake too we'll talk about that And I get, you know, these 40-pound ice bags every week. They know me very well at Joe's Ice up there. Every time I go in, they say, hey, boss, having a good party again tonight, eh? I'm like, yep, I need a lot of ice. But so this is the interesting thing. When I start first week, it is terrible, super painful. You know, you go in, it's like a whole body cold presser task, right? Second week, it's also, you know, your breathing goes up, your heart rate goes up. But gradually, and kind of with some automaticity to it, now I go into the ice bath immediately.

34:37My heart rate goes down. My breathing goes down. I get super relaxed. So this is the interesting part there apropos of emotion regulation. It generalizes for me. This is an experiment of one. But for me, it generalizes. So previously, prior to the ice bath, driving around Pasadena, I don't know, in the last year or two, This seems to have risen somehow. I'm trying to park on the street. There's a lane next to me. I have my signal out. There's a parking space. It's clear what I'm trying to do. I see somebody come up behind me. They can see. I'm trying to park. They can move over. No. They come right up behind me, go on the horn.

35:15And, you know, you immediately feel just an immediate anger response, right? Well, after the ice bath, it's flat. So there was an immediate automatic down regulation of my autonomic emotional response to a psychological stressor, somebody honking at me, that was trained and generalized from the ice bath. There's an experiment of one. I'm not claiming this as a published study. So I think there's a direct autonomic training component as well in terms of the strength and the automaticity, the ease with which you can regulate emotions, that they can become kind of automatically regulated. You don't have to overthink it.

35:54It becomes smooth and effortless to some extent. And that's the place where you want to get.

36:01Andrew Huberman:I've known Wim a long time. And although I sometimes, in my opinion, unfairly get tacked to the deliberate cold exposure, as we call it, thing a little too much, because we talk about many things on this podcast, not just that, I do find it very useful. And years ago, my lab had collaborations with the special operations community. And they'll tell you that one of the reasons it's such a wonderful tool is it's so reliable. You always get an increase in adrenaline, norepinephrine in the brain. And to some extent, and this might surprise you, perhaps not, you get often reductions in cortisol, which is kind of paradoxical.

36:34Andrew Huberman:But when people practice, it's very reliable and provided it's not so cold or it's an open lake where you can - It's reliable and super efficient. And safe. I mean - Unless you're doing it in a lake or you're doing hyperventilation first. Five minutes after a shower, it's extremely efficient. Five is, that's a lot. That's good. Well, after five minutes, you can look at my body mass index. After five minutes, I get hypothermic. So I can't stay in very long. That's a good long while and even in a cold shower. And there is now evidence of improved resilience to subsequent stressors of the sort that you described.

37:02Andrew Huberman:And there are some okay papers. I think it's a wonderful tool, especially for this buffering, this immediate stress or anger response. Very powerful. Before we went on, Mike, we were talking about a different type of stressor, which is the ultramarathons that you're currently training for, a 100-mile race, which is, by the way, super impressive even just to shoot for it. I know you've done others. Trying is the operative word here. Okay, well, I have confidence in you. Talk to me in two months. Yes, I will. I have confidence in you. You're going to finish this 100-mile race. But we were talking about something that I think is relevant to bring up now, which is you were describing how, you know, at some points during these races, you just feel like complete garbage.

37:42Andrew Huberman:But then you start to feel better. And so then the next time you feel like complete garbage, you have the cognitive knowledge that you felt terrible, then better again. And so you're starting to integrate over longer periods of time. So here's another example of emotion regulation, but over much longer time scales. It's a little bit harder to access for most people than a cold shower. No, but I think this is one thing, one reason, many reasons, but there's one reason that I love these ultra marathons and sort of identify as an ultra runner, even though I didn't do it for decades. And I'm just now getting back into it because of that non-linearity.

38:16You have these major ups and downs. And, you know, the sort of mantra that ultra running has co-opted is, you know, relentless forward momentum. But the sort of psychological equivalent is just relentless optimism, like optimism in the face of adversity. You have to just keep that mindset. And everybody there is like that. You know, you come around like mile 40, mile 50, mile 60. You come around some curve and you look and feel like crap. People go, looking good. Nobody says, oh, looks like you're not going to make it. Nobody says that, right? So everybody is super positive. You're hanging in there and it is really hard.

38:51And you've just been going downhill. Your knees are shot. You have blisters. You've been vomiting, super tired. And you extrapolate and you think this is not going to work. But if you refuse to give up, it doesn't always work, but about half the time or so, it levels out and it starts going back up again. And you keep going. I mean, you feel wrecked at mile 50. I feel wrecked, or earlier, mile 30.

39:16Andrew Huberman:I wouldn't know. I've never run for two miles. And so trying to think forward and say, well, I have to do this over again. This is like not fathomable. So it's a really interesting exercise in not giving up and being able to do something that you think is impossible to do. For that matter, all of your listeners would think it's impossible. If any of your listeners went running with me, they would conclude two things. One is they're faster than I am. And two, I'm not going to be able to do 100 miles, which means if I actually finished the 100 miles, all of you would be able to do so as well, which I think is true.

39:48I think anybody can do it. Anybody who's basically healthy, if they only wanted to, which is the key, could actually do it. So it's just a really interesting exercise. You know, it's only 30 hours, but it's only 30 hours. It's not like, you know, years. How hard can it be? Well, it's hard, but it's doable. It's definitely doable. And so it's just in that sweet spot of something that seems impossible and is just unbelievably hard but doable. And that's attractive somehow, if you can do it, which, of course, doesn't happen all the time.

40:22Andrew Huberman:Yeah, and I don't know if there are any data on this, but for people that have lived through really hard things and come out better or have pushed themselves to deliberately do hard things of the sort that you're describing, I do think that the memory of that can recall our body and brain's ability to lean into other hard things. I think so. I mean, it must be the case. I don't know of any good experiments on that. But, you know, what's that post-traumatic resilience, I guess they call it? You know, I mean, some people come out of very difficult circumstances. Maybe they do, quote, unquote, the work they need to or not.

40:55Andrew Huberman:And they just say, okay, like, I'm better for life because I'm out of it. Other people carry the wounds of that forward in a way that they're, you know, they're psychological and sometimes their physical health is a downward trajectory. It's a very interesting thing about like how should we conceptualize pain and pain ending? Like some people seem to live in the discomfort of the pain having even happened. Yeah. You can certainly persevere and overcome, you know, severe adversity if it's time limited. And I think just your own sort of belief in yourself and your capability to overcome adversity, as you were saying, is one important component.

41:31Another one is something like gratitude or awe. And you get to appreciate and just value, you know, just the fact that I'm here talking to you. I mean, I'm just, I'm actually grateful and feeling some sense of awe right now at just existing. And so getting to that point where you're just, every morning you wake up and you have this sense of, I guess, gratitude and awe or some combination of those emotions, I think that's a really valuable thing to carry out of all of this. And it takes time to kind of accumulate, but I like living that way.

42:05Andrew Huberman:I want to get back to the emotion system, but I'll just, I feel inclined to mention we had Dacher Keltner on the podcast. Oh, yeah, well, he's worked on awe. On awe, and he defined it so beautifully. He said it's when we bring our attention from a small spatial scale to a large spatial scale or from large to small. But then during the course of our discussion, he added that this is also true in the time domain. So when we live our life day to day, we start to feel kind of lost in time. Yeah. And awe becomes less common. But when perhaps we run a hundred mile race across 30 hours, we realize how much can happen in 30 hours.

42:42Andrew Huberman:One could say, oh, well, then you finish the race and the rest of life seems trivial. but it seems the opposite is true. That we realize that time is this very elastic thing, at least in our minds. And all of a sudden we have awe for the fact that we have so many days of life to live forward. It's very interesting and it almost speaks to the ice bath again. Like you have this very compressed, stressful experience that gives you that gap, that gap between stimulus and response that seems very hard to access unless we subject ourselves to these kinds of things. No, and I think that capability, I mean, people think, you know, chimpanzees maybe can feel awe, But I think it's a uniquely, at least as we have it, it's uniquely human emotion.

43:18And it's based on a broad sort of metacognitive ability we have, which is to detach our conscious experience from the here and now and do like mental time travel. It's pretty derivative to the need to understand other people. So I could put myself into your shoes right now. I can do that. I could imagine sitting where you're sitting and I'm seeing Ralph Adolfs here. I could imagine zooming around and adopting another person's perspective in space. We certainly zoom around in time and reminisce stuff from the past, imagine things in the future. And I think awe is like that too. We adopt a different perspective that's not just tied to the here and now, which I think is probably a crucial ability that distinguishes the nature of conscious experience in humans, which is that we have some control over it.

44:06I can simulate what it's like to be you. I can imagine being in the past or in the future. I can zoom out broadly when I'm feeling awe. And I think animals are more just stuck with whatever the senses are delivering to them right now. That's the content of their conscious experience. We can use it flexibly. And that's, I think, why we can plan and write novels and fiction and think about most of the time, right? If I ask you, what's in your consciousness? What are you thinking about? It's not stuff that's in front of you. You're daydreaming. You're like all kinds of places. And that really gives the human mind the power that distinguishes it from any other animals.

44:46And it's the reason we have everything that we have that makes us so different. So awe, I think, is an example of a uniquely human emotion that derives from that ability to adopt a vast point of view or a point of view that's not tied to just whatever the senses are delivering to you.

45:04Andrew Huberman:I'd like to take a quick break and acknowledge our sponsor, AG1. I'm excited to share that AG1 has just launched their newest formulation, AG1 Pro. AG1 Pro takes the clinically backed AG1 formula, which is a blend of vitamins, minerals, probiotics, and adaptogens, and adds three important new ingredients, creatine monohydrate, calcium HMB, and zinc carnosine. Each serving has five grams of creatine monohydrate to support muscle strength and performance, as well as brain health. Calcium HMB to support muscle recovery and reduce muscle breakdown, and zinc carnosine to support and improve the lining of your gut.

45:39Andrew Huberman:All three of these ingredients have compelling science to support them, and therefore, I love seeing them added to the existing AG1 formula. As most of you know, I've been taking AG1 every day for nearly 14 years now. I started taking it long before I even knew what a podcast was. It's a great product, and it's now made even better with the new AG1 Pro formula. If you would like to try AG1 Pro, you can go to drinkag1.com slash Huberman to get a special offer. AG1 is giving away a free bottle of omega-3 coenzyme Q10 with your first subscription. Again, go to drinkAG1.com slash Huberman to get a free bottle of omega-3 coenzyme Q10 with your first AG1 subscription.

46:17Andrew Huberman:As long as we're talking about assessing the emotions or the perspective of another, what are some favorite experiments, either yours or others in the field, about perception and assessment of emotions? I've seen a number of studies like, oh, people with lesions here or there see scary faces is not that scary. What's the sort of general conclusions about those studies now in 2026? Because I have a feeling a lot of what was in the textbooks when I was a graduate student may not still hold up. When I started as a postdoc in the early 90s with Damasio, I started my career on that topic by studying this famous patient, SM, who had selective bilateral amygdala lesions.

46:57And the finding was that she's unable to perceive fear in emotional facial expressions. Perceive fear. Could she feel fear? Subsequently, we also did that. It took, for some reason, because it's just harder to do, it took some years. Justin Feinstein, who has the float clinic in Maui, was the first author on that paper. So, some years later, we took that same patient to haunted houses. We took her to an exotic pet store where there were snakes and spiders. We showed her horror movies, a whole bunch of things, and found also she doesn't seem to consciously experience fear either. So there seemed to be this very specific deficit for fear tied to the amygdala from one patient.

47:36So that's a big caveat. Does this generalize? Well, yes, the amygdala is important for fear, but just saying it's a center for fear is overly simplistic. It's embedded in a big network of structures. There's individual differences and so on and so forth. The perception of emotions has been studied a lot and probably has been the topic of the most acrimonious debates to some extent. So Paul Ekman back in the 70s, famous, by the way, I dedicate my forthcoming book to him because he probably had the biggest impact on modern emotion science of any single person. But his claim to fame was he went to New Guinea and these non-Western cultures and claimed that universally across all cultures, people recognize these so-called basic emotions from facial expressions.

48:23If you Google this now, emotional facial expressions, you will find pictures of emotional facial expressions. Lots of AI companies and computer algorithms are predicated on the idea that you can read out the emotion from somebody's facial expression. He had six of them, happiness, surprise, fear, anger, disgust, and sadness, sometimes contempt added in there. Well, it turns out it's more complicated than that. And actually, Lisa Feldman Barrett, of all people, co-authored a paper with me and three other people a couple of years back that the title was something like Emotional Facial Expressions Reconsidered.

49:00We took stock of the whole literature and asked, is this really true? Is Ekman's claim really true? Can you tell how someone feels from their facial expression? And the answer is, well, not nearly as well as you would think, and in general not. and the reasons are methodological. And once you think about it, they make a lot of sense, which is that the emotional facial expressions that Ekman pioneered, I used them in the first 1994 Nature paper with his amygdala lesion patient, those aren't actually what you normally see walking around the world. People don't have those facial expressions. They are posed facial expressions by actors.

49:33Yeah, they're very extreme. And then the task is like, well, here's a list of emotion words, happiness, fear, anger, disgust, et cetera. Pick the one that matches the face. That's the typical task.

49:43Andrew Huberman:So it's multiple choice. Look, if I gave you a bunch of emoticons and a bunch of emotion words and asked you to match them, you could do that very easily. It wouldn't show you anything about emotions. It shows you that there's, by convention, there's some association between these things and these things. That's it. So when you actually see real-world facial expressions and when instead of giving a list, you just ask people, just generate freely a word that describes that, you get something that has much more variation, much more heterogeneity, which then was part of the ingredient for Lisa's whole claim that variation is the norm and that in fact emotions are in some sense constructed rather than packages to be found in nature, which I disagree with that part.

50:28But for the emotional facial expressions, for the perception of emotions in others and in animals, I was just talking before coming in here to one of your colleagues about your cute dog. And they've done studies, there's several studies now, where dog owners, if you ask them, can you tell if your dog feels guilty when you come home because it did something bad? Dog owners are pretty convinced they can tell. Well, if you do a controlled experiment, there are a chance. They think they can tell. So our conviction that we can tell something about people or animals, their very emotion states, just from looking at the facial expressions, our conviction vastly outstrips our accuracy.

51:07We're pretty convinced we can do it. We're mostly not so accurate, which makes sense because ordinarily it's not just some facial expression. If I see you now and you look sad, I wouldn't stop there and I would say, Andrew Huberman is sad. I would ask you, how are you feeling? What's going on? I would probe you and get a lot more information. Maybe you would say, oh, no, I'm just this drink I had tasted bad or something. You know, that caused me to make a certain facial expression. So in general, these artificial lab situations where all you see is a picture of a face and asked for the emotion, we don't do that in the real world anyway.

51:42We would probe further. We would take into account the whole circumstances. We would ask the person. And then you can disambiguate these emotions. So it's not that we cannot tell what emotions people or animals feel. But we don't do so normally just from a single slice like a facial expression.

51:59Andrew Huberman:I feel like at least in the context of romantic partnership, so much more of our assessment of another person and their assessment of us is actually a mathematical integration of noticing when frequency of speech or frequency of text is heading in a negative direction relative to the mean, right? at a particular time of day. And I think the brain is really good at saying like, like normally somebody is pretty communicative in the morning, but less at night for sake of example. But suddenly they're like a little more terse with us in the morning, but maybe not even harshness. There's just fewer words exchanged.

52:33Andrew Huberman:And then the brain doesn't think, oh, like they looked angry or they looked frustrated. They, you know, like they were like, it's a little quieter this morning than usual. And if it's a very quiet person, you have fewer data points to work from, but we become exquisitely tuned to this. Absolutely. Much more than like, oh, they're carrying their shoulders differently. At the extremes, I think we see this. Somebody walks in the door and you can tell like they're sad, they're defeated. In general, we're looking for change. You're looking for change. It's a time series. And the number of times or even just like you probably had this experience, like in an email with a colleague, let's move it to a different domain.

53:07Andrew Huberman:There's a certain kind of language that's used in an email that's different than the usual language. Like they've never really used these words before. You don't even identify which words those are. years ago there was this chart that some graduate student or postdoc put out that if the director of a lab signs off with their name it means one thing if they punctuate their email it means like let's meet you know like you're in trouble you know if there's just a dash with a first initial you know there's all this and you kind of i laugh too and then you realize you go wow like they're really paying attention to all these subtle cues but those seem like the kind of cues that we rely on much more than than like do they look sad do they sound And happy.

53:45Andrew Huberman:And I think we vastly underestimate this. I don't know if there are any good studies of this, but this feels like the more relevant in the real world. Yeah, we just finished a study like this where people texted. That's all they had. But it's dynamic. It's a conversation. There's like a whole transcript. And then the question is, what can you tell about a person, both in terms of their stable personality and their current mood, just from that text? It turns out you can tell a lot. So people did the study recently where people generated, I think it's about a page or so of sort of diary type written text and asked just large language models like GPT or Claude to analyze that text without knowing anything else and just tell me the personality profile.

54:27And it's as good as the ground truth or as another person or a clinician would be.

54:31Andrew Huberman:As good as a clinician? It gets close to the ground truth, and it's as good as like a good friend or a person who knows the person. So if you score the big five, which is what they did in that study, extroversion, conscientiousness, neuroticism, et cetera, you can tell that. AI can tell that just from a transcript of text quite well. So the information is there clearly in what we say, what we write, and the order in which that progresses, that tells a lot about a person. enough that AI can basically diagnose your personality from just text. It's almost like our brain is very attuned to when we don't get what we were expecting to get in terms of the amount of interaction.

55:14Andrew Huberman:Like I have some people that clean up the graffiti on the street where I live and there's always an exchange of hello or like a hi if one of us is on a call or busy. And I can say with certainty, because this happened the other day, that if I I looked over and the person saw me and then turned away, even though I don't know their name. Well, maybe I do now. But there's very little familiarity except with we always acknowledge the other's presence. If they were to do that, I would think, gosh, like this person's like maybe upset. That's one of the key ingredients of Lisa Feldman-Bertz thinking, certainly in recent years, which is prediction.

55:48That most of the information comes from when there's a mismatch between what you're predicting about a circumstance and something that's just different. because that carries information. Something changed, right? Like what you were saying. And Lisa's work, Lisa's thinking on emotions incorporates prediction in a big way these days, that there's something that you're predicting about the world, but suddenly, you know, there's a tiger or something unexpected, and you need to incorporate that, and that carries important information. But absolutely, we're always predicting and we're taking into account things that change, like the facial expressions, you know, original studies, like the ones I started doing as a postdoc, where you just show these static Paul Ekman pictures of facial affect.

56:31Well, we never see that in people. It's always dynamic. The face is changing. And so Philip Shins, Rachel Jack, colleagues in Scotland, for instance, have studied this in great detail and used dynamic actual videos of people making faces and asked, at what point does the brain start to represent different emotions, depending on not how the face looks, but how the face is changing. Interesting. So the dynamics are everywhere.

56:56Andrew Huberman:It's super important. Because when we look at babies and they start to smile for the first time or they express what we think is humor or something like that, we are so tuned to faces because they can't really do much. And whether or not they're interacting with us or not is really dependent on our behavior. There's a lot of control there. We're putting them in front of us. As they develop more autonomy, then these sorts of dynamics really emerge. And the face, I mean, the face is visible and the face, the human face has way more muscles and control than other animals do. Great apes have similar sets of muscles, but monkeys or your dog, you can't make those kinds of faces.

57:33Andrew Huberman:He side-eyes me every once in a while and I project onto him what that's about, but he's a real sweetie. I had another bulldog mutt, they're both mutts, who is much more coarse, less affectionate. This one is like pure butter. But of course, I don't know what's going on in his head. He could be thinking like, this guy's the biggest jerk in the world, you know, like I wish he'd be walking right now. This patient, SM, who had bilateral amygdala lesions, could she experience autonomic arousal? Could she experience stress? Could she experience anxiety under any conditions? She could. And that's really important.

58:06So you might think that, you know, it's just like the whole emotion system is gone. You just sort of denervated the entire autonomic nervous system. And that's why you don't have emotions. But it's much more specific than that and fits with thinking about emotions as evolved functional modules for dealing with particular types of statistically recurring environmental challenges that share some challenging feature in common. So she doesn't have fear to external stressors. Like we went with her into a haunted house. She poked the monsters and wanted to touch things. Same with the snakes and spiders in the pet store.

58:45but we did a study again Justin Feinstein I think was the first author on this one as well With her and with a couple, two, maybe two or three patients who had similar lesions in collaboration with Renee Herleman from Germany, where we put a mask on them and had them inhale carbon dioxide. If you do that, you get a panic attack in about half the population because it makes you feel like you're suffocating. So as soon as you get that carbon dioxide in, it changes the pH in your blood that's detected by the brain. And you get this massive air hunger, like you suddenly can't breathe. That's what your brain goes into this alarm mode of some suffocation, like a panic.

59:27And she and the other amygdala patients had a full-blown panic attack when they inhaled the carbon dioxide. So this interoceptive signal seems not to depend on the amygdala and to depend on other brainstem circuits. So we had a very important association between different types of fear, which is, I think, a bottom line story for the way that the science is informing our folk psychology, which is these categories we have like anger or fear or disgust. There are many varieties. It's much more finely differentiated than that once you look at the science and once you look at the brain systems. There are distinct brain systems, in this instance, for fear to something out there in the world versus panic of something happening inside you, like having a heart attack or not getting enough air.

1:00:12Andrew Huberman:I see. Maybe we could talk a little bit about the bodily representation of these things we're calling emotions. Years ago, I posted on social media a picture of a figure from your paper with, from your book, excuse me, with David Anderson, which was describing a study where people self-described, so it's purely subjective reporting, as I recall, where in their body they felt different emotions. So it's kind of like a heat map in the forehead for certain emotions and in the whole body for others. And there were a wide range of emotions. And admittedly, it's subjective report. But does this hold up?

1:00:48Andrew Huberman:Like, I think to myself, like, where do I feel sadness, like heartache? Well, I tend to feel it around my heart, but maybe that's because it's called heartache. Where do I feel anger? Well, extreme anger I'm going to feel is a whole body experience. Same thing with awe. So what, if anything, is important about the regularity and or the variation in where in our body we feel emotions? Some people would say this is like their whole experience of life. They feel things in their body all the time. Some people feel, I think, are more cerebral. They kind of think things more than they feel things. You know, I think it's a great question.

1:01:24I mean, that figure that you're alluding to came from a paper, I think, in PNAS by Laurie Newman, my colleagues in Finland. and he and his colleague Haney Sarimaki, they've done some of the great recent studies also on experience of emotions in humans using functional MRI. But what you mentioned, so the experiment is I just give you a word, right? I'm not actually making you feel the emotion. I'm asking you sadness. Draw, you know, where on the body you think you would feel that emotion. So if you think about it, it's certainly not about actual physiological changes in the body. Nothing's measured in the body.

1:02:01They don't have electrodes on the body or whatever. There's people just drawing on a little mannequin where they think they would feel the emotion. It's also not about conscious experiences of emotion. I'm not showing you sad movie clips or anything like that. I'm giving you a word, a single word. So it's about concepts. It's about where in the body people's concept of sadness or happiness or fear, where that corresponds to changes in the body. Now, that's an interesting question, but you have to narrow it down to that, which is a fundamental problem with most emotions, including that one. I think the title, I forget what the title is, but it's something like bodily maps of emotions or bodily maps of subjective experience, maybe even.

1:02:41It should be something like people's concept of where in the body emotion words are associated with changes or something like that. What's interesting about that study is that Lowry has gone on to look at it in different cultures. He's looked at it developmentally across children and asked how these concepts and where in the body would feel emotion develop. So it's super interesting work. but it's ultimately about people's concepts of how emotions correspond to changes in the body not the real actual changes in the body. But then as you were saying of course there are real changes in the body when you really feel an emotion as well.

1:03:19And that's harder to study but people have studied it quite a bit with a focus on the part of the brain that gets a lot of input from the body which is a part of cortex called the insula. And so there's lots and lots of work on the insula. It gets input from all the organs in your body, everywhere in your body. So, you know, from your heart, from your liver, from your kidney. I had a kidney stone not too long ago. We should talk about the kidney. Have you had a kidney stone? Don't. It's really interesting.

1:03:48Andrew Huberman:You have to pass it? Eventually, it's passed. But it evokes very interesting adaptive behaviors. Well, just as an aside, before I forget it. So, normally for pain, extraceptive pain, like we were talking about the hot plate before, Or, you know, you pull your hand away or there's some kind of reflex. For the kidney stone, that's not adaptive. There's nothing to pull away. So my wife, this was in Switzerland. We're in a remote little town in the middle of the night. My wife sees me curled up into a ball, right, on the floor, just kind of breathing loudly and kind of curled up and making rocking motions.

1:04:20And goes, what's wrong? And I tell her, well, I have a kidney stone. And then she asked me, can't you just stop that behavior? Can we get on a plane and fly to the U.S. so you can get ultrasound, maybe get treated for the kidney stone? Can you stop curling up into a ball and making rocking motions? And I was kind of thinking about that through my haze of pain and said, well, no, it's kind of like the hot plate and pulling away. It's a really strongly motivated behavior to just kind of withdraw, basically. So it was a very interesting adaptive behavior. And she called, you know, the equivalent of 911.

1:04:54And in the middle of the night, some guy came down and, you know, put a bunch of opiates into me. And he kept having the scale of, you know, on a scale from 0 to 10, how painful is it? And I would sort of go from 10 to 9.5. And it was extremely painful. But eventually, they got me to our clinic there. I passed the stone. And it was an interesting experience. I mean, it's pain, but just like what we were talking about for emotions, pain is not pain. If you have a pain in your eye or you have a pain from a hot stove, this is a very different type of pain. And one that's, I would say, worse than the hot stove.

1:05:30It's like because you can't escape. When you can't rub it. You can't do anything except curl up into a ball and pray. I mean, it was horrible. At any rate, so at that moment, had I been in an MRI study, my insula would have been strongly activated. So this is a region of the brain that according to theorists, but Craig was the first, Antonio Damasio has theories in a similar vein. This would be the substrate for the conscious experience of the emotion or of pain in your body. So it's getting all this input from your body and representing the changes in your body as a conscious experience. This was the original theory that William James had back in 1884.

1:06:11He wrote this paper in Mind, What is an Emotion? and his theory was that you see the bear, you run away, your heart rate goes up, and then you feel the emotion, which is a consequence of you perceiving all the changes in your body that happened first. Now that's, I think, the conscious experience of emotion, yes. And a lot of that depends on representing, perceiving everything that changes in our body. But to my mind, that leaves the question of what the emotion is. That's still antecedent to that. You first have to trigger all the changes in your body and run away. What's doing that? That's the emotion.

1:06:46The conscious experience may well come later and unfold over some time. But the emotion state, separate from the conscious experience, as I've emphasized, would be the one that actually motivates all the behaviors and all the different changes in your body. So long answer to your question, there are these two different ways of talking about the role of the body. The one that you alluded to in this figure from Laurie Newman, my colleagues, that we reproduced in our book is about people's concepts of emotions, and they're certainly tied to changes in the body. Whether or not those are accurate, I think we just don't know.

1:07:21So is it the case that those drawings that they have in the figure that we were speaking about, if you put electrodes on, your measured blood flow changes, that's actually where things change when you have awe or anger? I think we just don't know. I think that's a set of studies that remains to be done. But then in addition, there is the fact that all of the changes in your body are represented in your brain in the insula. And that seems to be a big part of the substrate for feeling the emotion, for the conscious experience of the emotion. And other things, nausea, pain, kidney stones. So it's not limited to emotions, but the strong feelings that we have, like you have a tightness in your chest.

1:08:00If you're feeling really sad, for example, that would be represented in your insula.

1:08:04Andrew Huberman:Because in Eastern medicine, there's strong beliefs about different organs being associated with different emotional states, even like gall. You know, someone has a lot of gall, the gallbladder, you know. But then again, I always have to remind people that a key feature of schizophrenia and psychosis of other kinds is clang associations, two words sound alike, and people link them. And so we also are subject to this in a much milder way in the world of health and science, and especially in the public discourse. course, people will say, oh, you know, a walnut looks like a brain. Walnuts are good for your brain.

1:08:38Andrew Huberman:Well, they have some fatty acids that are probably good for neurons, but it has absolutely nothing to do with the shape of the walnut. It's amazing how these ideas can kind of perpetuate. Well, and I think there is some truth to them. I think it just has, the honest answer is it has not been tested. So if you ask someone like Lisa Feldman Barrett has made this point repeatedly, that there really is no systematic association between specific emotions and specific changes in your body. Well, if you look at those studies, people put a few electrodes on and they measure, you know, heart rate changes, blood pressure changes, et cetera.

1:09:10It is extremely crude. You're looking at a tiny, tiny slice of what's going on in your body. What you would want to do is have a detailed high dimensional readout of, okay, your gall bladder and your liver and your kidney and your heart and changes all over your body and look at that and ask, is there some kind of association between specific emotion states and changes, some kind of complex change in your body. And I would bet that there is, but we just don't have those data yet. So those studies remain to be done.

1:09:41Andrew Huberman:Yeah, they really should be done because I could make up a story where if someone or an animal feels extreme anger, like of the sort that they would have right before they were in a fight, that certain immune organs would deploy a bunch of things that prepare for wound healing or prepare for resilience in the aftermath. That just stands to reason. Of course, I have no data for that. Well, and the link between the brain and the body, I mean, we now understand that that is so detailed and so intricate that really brain and body are very, very tightly coupled. And we do know that there are signatures that are distributed, that are complicated.

1:10:18But Lisa Feldman-Berrett herself, in collaboration with Tor Weger, has published neuroimaging studies showing that for basic emotions like anger and fear and sadness and so on, there are reliable signatures of brain activation. They're distributed. They're spread out. They're complicated. They're not just like in one place. But given that, given that association between emotions and patterns of the brain and the fact that the brain and the body are so intimately tied together, I think it's a completely reasonable hypothesis that you would find a similar high dimensional signature of changes throughout your body that are systematically associated with certain types of emotions.

1:10:56Andrew Huberman:I had a thought spring to mind based on our earlier discussion. From the perspective of media and advertising, it makes perfect sense why all media and advertising is incentivized to get you to prioritize an emotion to the point where it takes over behavior. To go click and buy something or to vote a certain way or to hate a certain group or to like a certain group. And so really what they're fighting for is this prioritization thing. Like the path to behavior is through the prioritization of emotion. It's basically an attentional capture. It captures your attention, which is what emotions are designed to do.

1:11:32And once you've captured people's attention, you have a captive audience and you can control them much more.

1:11:37Andrew Huberman:And in some sense, it's obvious, right? You get people emotional. They're more likely to behave in a certain way versus another. But I think we underestimate the extent to which all day long we are bombarded with these signals. Like subtle advertising doesn't really work well. Yeah, yeah. Someone said, I don't know who said it, but all A-B testing leads to sex or violence. Because if you really just look at what's likely to grab people's attention, eventually you regress into the hypothalamus. The more primitive states inspire more attention, which tells you a lot about the world. And there are ethical lines and there are societal lines where you say, no, no, that's too extreme, too much violence, too much skin.

1:12:16Andrew Huberman:But it's all veering toward the hypothalamus, so to speak. It's all getting more and more primitive. There's a lot of processing that goes on in all these subcortical structures, and certainly what we understand best in terms of emotions are all these subcortical circuits. And a lot of that is below the radar of our conscious awareness. I'd like to take a quick break and acknowledge our sponsor, Function. Function provides over 160 advanced lab tests to give you a clear snapshot of your bodily health. This snapshot gives you insights into your heart health, your hormone health, autoimmune function, nutrient levels, and much more.

1:12:51Andrew Huberman:They've also recently added access to advanced MRI and CT scans. Function not only provides testing of over 160 biomarkers key to your physical and mental health, it also analyzes these results and provides recommendations for improving your health from top doctors. For example, in a recent test with Function, I learned that some of my blood lipids were slightly out of range. As a result, I decided to start supplementing with natokinase, which can naturally help reduce LDL cholesterol. And it did. In a follow-up test, I could confirm that this strategy worked. My blood lipids are now back exactly where I want them.

1:13:25Andrew Huberman:Comprehensive lab testing of the sort that function offers is just so important for health. I mean, how else are you going to know what's going on under the hood? And while I've been doing blood work for years, it used to be time-consuming, complicated, and expensive. In fact, I used to spend thousands of dollars per year trying to get this kind of data. And the data, frankly, were not all that good. But now with function, it's extremely easy and affordable. A function membership is only a dollar a day,$365 a year. And if you think about the information it provides and the health challenges it helps you avoid and the proactive things that it can do for you to enhance your health, I truly look at it as a savings.

1:14:01Andrew Huberman:To learn more, visit functionhealth.com slash Huberman and use the code Huberman for a$50 credit towards your membership. Again, that's functionhealth.com slash Huberman. At the opposite extreme, I mean, what happens when I go to like the MoMA and I see a piece of art that just for some reason makes me feel a certain way, maybe sadness, maybe happiness? Do you think that art of that sort is able to capture the circuitry related to particular emotions across people? So not just about my unique experience. And art is subjective, right? So there's things related to taste. But let's assume this is abstract art.

1:14:41Andrew Huberman:So there's no apparent faces or animals or no depictions of scenes. But let's say out of 100 people, you know, more than half say, I look at that and I just feel peace. Is it the case that some art can tap into neural circuits or some music can tap into neural circuits? Absolutely. Independent of the lyrics. I mean, we don't have the brain imaging, presumably, but there is a kind of a more sophisticated example. We're not regressing to the hypothalamus. Absolutely. But this is the stuff that like the richness of life is also about that. Sure. And so the interesting question is which particular features in the music or in the abstract art is it that are driving those generalizable emotion responses?

1:15:22And they're certainly there. One of the earliest studies on emotion actually was done by Anne Blood and Robert Zatori in the mid-90s or something. I believe using – I'm pretty sure using positron emission tomography PET rather than fMRI at the time. And what they did was they played music to people, and I think they set it up so that you and I could hear the same piece of music. In your case, the music really does something for you. And the particular measure was does it send shivers down your spine? Do you get like chills, goosebumps from listening to the music? And it does that for you, but not for me.

1:15:54And in your case, the same auditory stimulus, different emotion. and from the imaging they showed that the insula, the structure we were just talking about, the amygdala, several of these emotion-related structures are indeed activated when you have shivers, chills down your spine listening to music. For abstract art, my Caltech colleague John O'Doherty had a paper a little while ago where again he found something generalizable. He decomposed abstract art into the constituent sort of visual features. You can feed it into a neural network and get a representation of all the different shades and colors and the basic visual composition, basic visual features that constitute that.

1:16:35And from that, you can reconstitute whether or not it is liked or not liked, whether it's a pleasant, whether people find it pleasant or unpleasant. So it doesn't come out of nowhere. Yes, there's something about even if it's abstract, even if it's abstract music or if it's abstract art, there's some auditory or visual features there that are generalizable and that can be used to evoke emotions. And the big question then is, can we link that back? Obviously, the emotions didn't evolve in order to appreciate abstract art, but they evolved to detect tigers and bears and other things. Well, are there similar kinds of visual features?

1:17:14Presumably there are. So there's some visual features in the real world for which particular emotions evolved that can also then find a place again in abstract art and evoke similar emotions. That's the basic story. But the answer to your question is yes. Even for these very uniquely human sort of abstract kinds of stimuli, people have done work and found particular features in those stimuli that will trigger emotion states in humans. And they're great stimuli to use.

1:17:43Andrew Huberman:Talk a little bit about hard wiring versus learned emotional states at the brain level. We know there are brain areas that process faces, just the organization of two dots and a vertical line and a horizontal line below it. There are neurons that like that organization of features. And I should know the answer to the next question, but I don't. are there neurons that are tuned to a smiling face versus a frowning face at the level of like almost like like very sparse emoji like level we call them units in the brain are there units that are tuned to frowning faces or smiling faces and of course you'd love to be able to do the experiment and somebody who was you know had never been exposed to them for the first time but that's impossible to do so right right i have to assume the experiment has been at least thought about if not done?

1:18:32Yeah, I mean, it's a great question. I mean, you know, with respect to face processing in general, the sort of consensus is it's both hardwired and innate in some sense that there's something there in the brain already at birth that's experience independent. But then it also depends on normal maturation and development and experience. And so people like Rebecca Sachs at MIT, for instance, has done functional neuroimaging studies on babies and shown them faces and asked the question, how does this pulse system develop? It's always a mixture. People tend to think in terms of black and white. It's hardwired and innate, or it's learned.

1:19:09Nothing is either or. A good example is the visual word form area. So there's regions in the brain, like the ones that my former Celtic colleague Doris Sow studied, that are specialized for faces. But there's also a region in the brain, typically on the left, in most people, that's for recognizing words, letters. Now that couldn't have evolved because we had a long history of brain evolution before language, written language was ever there. So the question is, how does it come about? It can't be hardwired or innate because there wasn't long enough evolutionary time to evolve a region of the brain for figuring out words.

1:19:47But if you take a look in pre-verbal infants at the connectivity of this region that's going to become specialized for processing words once the infant can read, it's already wired up in a way to other brain regions that predisposes it to be able to do those computations that with experience, it can later be used in order to recognize words. So there's certain preset innate systems. Coming back to your question, smiling versus frowning faces, there are two parts to it. The first part is I can find you a single neuron in the brain that responds selectively for anything you like. There's like no shortage of them.

1:20:26But those in general, those single neurons don't do anything. They aren't important to understand how the brain works because the rest of the brain that is getting its input from all these neurons and all the downstream processing is not like a reflex. It's not listening to only that one neuron. It's getting input from tens of thousands of neurons. So at the population level, if we record from thousands of neurons and we ask, from that, is there information in a thousand neurons from which the rest of the brain listening to those thousand neurons, or we as the scientist could decode smiles versus frowns?

1:21:03The answer is yes. We've done that in collaboration with Uli Ruteshauser and Shua Wang and colleagues where we can record from epilepsy patients, like what Eddie Chang does, same kind of work. And so you have information. And of course, if you think about it, there has to be information in the brain neurons that would distinguish frowns from smiles because you can distinguish them. So where else would it come from? It has to be there in the brain. But it's not there mechanistically at the level of single neurons. They're very noisy. They typically respond to many different types of cues. So you always have to think about hundreds or thousands, a large ensemble of neurons because that's really the kind of unit of relevant information because that's what the rest of the brain listens to.

1:21:48Andrew Huberman:Yeah. I was thinking about how, you know, in a hierarchical system like the visual system, like we have neurons that are tuned to circles, more or less, you know, center surround. We talk about them, but circles, then bars, then oriented bars of a particular angle, then moving bars, et cetera, et cetera. And so built up from simple stuff to more complex stuff. So you can build feature detectors for lots of different things. I guess I was wondering when we come into the world, Are there cells in the fusiform area that not just like faces, but that are prepared to respond to two dots, the eyes, a vertical thing, the nose, and then a bar that is either, you know, bent up at the edges or bent down at the edges.

1:22:28Andrew Huberman:And then we build on that scaffold. I don't know that anyone's done these experiments. Not that exact experiment, but I think that in broad strokes, the answer would be that at birth, it's crude and it becomes more, much more refined and more granular through experience. and then indeed exactly what you said happens, and coming back to emotions, if you think about, so how does the state of fear come about in the brain from seeing the bear or the tiger? Well, at the level of the retina, it's just a bunch of pixels. It's some blobby black shape that is looming and coming closer, etc. But then progressively, you have to construct more and more abstract representations, and you well know how this works in the visual system and artificial systems, deep convolutional neural networks that do object classification, do exactly that.

1:23:15They take just pixel-wise input, but then build something abstract. Like right now, I recognize Andrew Huberman there. If I look over here, I can still recognize you. Whether you're on the left or the right, whether you're close or far away, I would be able to recognize you invariantly with respect to those details, even though at the level of the retina, like a camera taking a picture, the detailed pixels can be vastly different. You can be left or right or close or lit in different ways. And you need to abstract from that an invariant representation regardless of the details. Same thing for emotions.

1:23:50Regardless of whether it's a bear or a tiger or a big arm pickup truck coming at you or lots of other kinds of stimuli, they all need to funnel in to a central abstract representation. That's another key feature of emotions. They require abstraction. And that's what makes them so flexible. And that's where you can get, David Anderson and I have described it in our book as this sort of fan-in, fan-out architecture. I can get to the emotion state from seeing a bear or smelling a bear or hearing a bear or hearing a twig snap, hearing somebody yell there's a bear. Zillions of different inputs, completely unlike the rigid reflex, which only has one input and that's it.

1:24:29You get the central state of fear. And then the outputs are also diverse. I can hide. I can run away. I can defend myself. And so that flexibility that the central emotion state affords, you can get to it in many different ways because many different sensory cues are informative about a potential threat. And then you can behave in very flexible ways that are context dependent. That's exactly what emotions allow you to do and what makes them so different from reflexes. Reflexes is just a single path through. There's only one way to trigger it and there's only one behavior. So if you had only those, you would have to have a separate reflex for the bear and for the tiger and for every possible large threat out there, which you couldn't possibly have.

1:25:10It's not efficient.

1:25:11Andrew Huberman:Yeah, the fan in, fan out visual is very, very useful. And it gets to the next topic I'd like to ask you about, which is building social intelligence and emotional intelligence. Because we define that different ways. People who seem unable to read the room, so to speak, versus people who are hypersensitive to other people's emotions, not necessarily responding to them, but they're really in tune. I'll go out on a limb and say that some of the happiest, most functional, and when I say functional, I also include in that they take great care of the people around them, their families, their coworkers, people that I know and have observed are not super emotionally in tune with the emotions of others.

1:25:52Andrew Huberman:meaning it doesn't seem like they're clocking every little nuance. And some of the more, I'm generalizing here, less functional, more labile people that I've known are really in tune with like what everyone in the room is feeling, who did this, who didn't do that. And going back to our earlier conversation, that so much of how we gauge other people's emotions is an integration over how often they tend to acknowledge us when we walk down the hall. If the first time I met you, you walked right by me, which who knows what would have happened. And the second time and the third time. And then the fourth time you say, good morning.

1:26:24Andrew Huberman:I'd say, oh, this is a really delightful person. If you did the opposite, said hello, hello, hello, three days in a row. And then the fourth time just like looked at me and brushed right by, I'd probably think like, that's weird. So there's some advantage actually to not being in tune with all the subtle cues of everyone around us. What in the brain is known about social awareness, about reading the room? We talk it up these days because indeed empathy is important, but this is a tricky one. I'm going to get some heat for saying this, but there's also a lot to be said for like walking into a room, acknowledging, okay, great.

1:27:00Andrew Huberman:And then like getting your work done. You don't want to be wrapped up into people's emotional states because unnecessarily, because they're labile. They're all over the place. There's a cost. Well, I think it's extremely heterogeneous. And so this is not sort of one size fits all and there's not one type of emotional intelligence skill that fits all occasions. And many different kinds can work. They depend on the context. They depend on the circumstances. Initially, when James Gross had emotion regulation, it was sort of focused on some basic mechanisms like suppression, reappraisal, acceptance.

1:27:35And now the big two topics in emotion regulation are variability and flexibility. So there's not just one way, but you need to be able to have many, many different options. And you can vary, vary your emotion regulation responses. But the other big part of emotion regulation, which is obvious, once you think about it, any parent would think about it, is it's interpersonal. It's between people. You regulate other people's emotions. And you have to pick up on other people's emotions and you influence other people's emotions. It's a bidirectional interaction. And so I think a big part of emotional intelligence comes from being able to read that probably in a fairly automatic way and in a context-dependent way.

1:28:17And depending on the context, it can be the case that what's most adaptive is if you really get involved with other people and you really talk to them a lot, you're very empathic, or you just take over. And that can work too, depending on the circumstances. So there are multiple strategies, and I think for any of these social intelligence, emotional regulation, any of these sort of metacognitive skills, the most successful skill is if you don't just have one, but you have variety, and you can switch between them, and you can use context to switch between those. Just like physiological heart rate variability, you don't want to train to just be able to have a low heart rate.

1:28:53You want to be able to train to have a variable, a big range. Same thing with emotions. What's most adaptive is being able to have a big range of emotions and being able to switch adaptively depending on the context between them. And I think that's where, you know, real long-term context-dependent social intelligence for people that really come out ahead. It's not one tiny slice where they do well and they don't do well in lots of other circumstances. It's the ability to be really adaptive and flexible and switch around.

1:29:22Andrew Huberman:which requires a keen sense of oneself, like where we are in our internal state and a keen sense of context. In fact, I observed a really impressive physician recently like moving through the hospital environment. I mean, he was just like all agency to do, but then with the patient, it was as if he dropped into a bubble. You know, the patient was understandably a little nervous about what was to come and it was remarkable. I was like, okay, that is superb bedside manner. But then it comes time to do the actual work, and that's not a time for emotion. It's just like 100%. You have to be able to switch.

1:29:58Andrew Huberman:100%. Like, I mean, the life and well-being of the patient relies on being absolutely focused on the task at hand. I mean, it's related, again, to the presumptive association between emotional granularity, what Lisa Fulman Barrett pioneered decades ago, the ability to differentiate and be aware of all the variety of emotions in you, and emotion regulation flexibility, that you're able to adopt many different emotion regulation strategies. But in order to do so, you need the emotional granularity to be able to be aware of all the different emotions that are going on in the first place. It's pretty two things.

1:30:36One is an ability to differentiate at a very fine grain, and the other one is to step back and have some kind of metacognitive oversight and control. So you can say, okay, here's this full spectrum of things I could do, and you can take a look at all of those, incorporate the context, and pick the one path amongst many that you could take that's the most adaptive. It's interesting.

1:30:57Andrew Huberman:Some of my favorite scientists are very emotive people. And then some of my favorite scientists, I'm thinking of one in particular when I was down at UC San Diego, when my lab was there, most people probably label as a little bit on the spectrum. I won't mention his name. He would walk into a faculty meeting where someone else was presenting and he would say out loud to me, like sitting there, like, is this any good? I have encountered people like that too. It's very disconcerting when you're giving the talk. It's disconcerting when you're giving the talk, but I was going to say, there's also something incredibly refreshing about it because it's almost like they're, they're asking the questions that they need to ask.

1:31:31Andrew Huberman:You're a little embarrassed for them, but you're, but it's liberating. You feel like, ah, we've broken the social mold here a little bit. And someone would say, excuse me, so-and-so, so-and-so is presenting and be like, oh, sorry. And then we'll just sit down and then listen. I mean, they're entirely polite, very actively engaged in the conversation, but I sometimes wish like, how cool would that be? Like, I'm sure there's a cost other areas in life, but how cool would that be? You lose, this person has a little bit less context dependent, you know, flexibility around emotions. And I have to imagine that they move through life in a way that's kind of like liberated.

1:32:05Well, they wouldn't have this huge cognitive load all the time. Right.

1:32:07Andrew Huberman:And he's extremely smart. Now that's qualitative, right? But like incredible, so actually a physicist turned neuroscientist. And I just thought, man, that's pretty cool. And then the more you go into engineering and science fields, the more of these people you encounter. This is true. You see fewer of these people in the performing arts, for instance. My lab studies autism, amongst other things, and you certainly would have the case that as a spectrum, yes, indeed, you would have mathematicians, engineers, lots of people who are very successful who are on the spectrum to some extent. And I think, you know, coming back to what you were saying, it's sort of liberating or simplifying.

1:32:41If you had to really effortfully, cognitively think about how to regulate your social behavior and make all the right moves and not offend anybody, you were worried about that all the time, it would be overwhelming. And I think it is overwhelming for many people with autism that you need to somehow internalize it, and it has to be relatively effortless and automatic. It has to become automatic at some level. And then you can move through life fairly smoothly in a socially very complex way. And that's what's difficult for many people with autism, that they lack that part. They can compensate to some extent, but the cognitive load starts really being an impediment because if you have to track everything, You have to remember, okay, I should make eye contact.

1:33:21I have to remember turn-taking. If you have to cognitively remember all those things, it's just overwhelming. So you have to be able to somehow have it be automatic at some level.

1:33:31Andrew Huberman:I'd like to take a quick break and acknowledge one of our sponsors, Element. Element is an electrolyte drink that has everything you need and nothing you don't. That means the electrolytes, sodium, magnesium, and potassium, all in the correct ratios, but no sugar. Proper hydration is critical for brain and body function. Even a slight degree of dehydration can diminish your cognitive and physical performance. It's also important that you get adequate electrolytes. The electrolytes, sodium, magnesium, and potassium are vital for the functioning of all cells in your body, especially your neurons or your nerve cells.

1:34:03Andrew Huberman:Drinking Element makes it very easy to ensure that you're getting adequate hydration and adequate electrolytes. My days tend to start really fast, meaning I have to jump right into work or right into exercise. So to make sure that I'm hydrated and I have sufficient electrolytes, when I first wake up in the morning, I drink 16 to 32 ounces of water with an element packet dissolved in it. I also drink element dissolved in water during any kind of physical exercise that I'm doing, especially on hot days when I'm sweating a lot and losing water and electrolytes. Element has a bunch of great tasting flavors.

1:34:34Andrew Huberman:In fact, I love them all. I love the watermelon, the raspberry, the citrus, and I really love the lemonade flavor. So if you'd like to try element, you can go to drink element.com slash Huberman to claim a free element sample pack with any purchase. Again, that's drinkelement.com slash Huberman to claim a free sample pack. Let's talk about autism. And I'll just put the mention up front because this is a topic that sometimes gets people triggered. Let's leave out for the time being, not because it isn't important, it is important. Let's leave out severe cases of autism where people need lifelong care, they can't care for themselves.

1:35:08Andrew Huberman:And let's talk about the rest of the spectrum. Already in that statement, I'm sure I violated some of the newer nomenclature. Let's just liberate ourselves a little bit, come at this from a place of benevolence and trying to understand social dynamics, social processing in the brain. So we're not talking about people with severe stereotypies who just need lifelong care, even, et cetera. We're talking about the rest of the category. So something like this former colleague of mine in San Diego. A little bit on the spectrum. For all I know, he might have been one of our participants in some of our studies.

1:35:37Andrew Huberman:I mean, a delightful person, happy marriage, happy family. Everyone in his lab adored him and brilliant scientist. And by my read, highly functional in all aspects of life, but definitely not tuned in to what other people are thinking or doing. And context mattered, right? I mean, he understood what not to do in a broad sense, but, you know, he was free of this burden that you described. So there's a lot of emphasis nowadays on kids who have autism of the sort that we're describing and the need, we're told, to train them to make eye contact and read faces. So this lands square in your work. Maybe you could just fill out a bit of what's now known, what's thought, what's not known.

1:36:23It's a great topic. I mean, the way that I personally have approached it is not with a primary interest in autism. I don't have a family member who has autism. I don't have any personal experience. It's really been, just like with the amygdala lesion patient, my main motivation has been to just understand the mind, cognition, emotion in general, and with respect to autism, by understanding individual differences. Everybody's different from everybody else, and autism is one particular dimension that we just have a lot of tools to look at that is social interaction, social awareness, ability to read other people's emotions.

1:37:02And so that dimension of social variability maps onto one of the facets of autism spectrum disorder. And so that's why we've looked at both people who do not have any diagnosis of autism. There's still, there's a range of autistic-like traits that you can quantify with questionnaires that are well regarded. And then once you get to a DSM-5 diagnosis, you have more and more severe cases of autism with respect to social functioning that, again, you can quantify using tools like the ADOS, et cetera. But it's a spectrum that I personally look at as a particularly interesting and important dimension of individual differences in social interactions with other people in my lab that have different motivations.

1:37:43They have family members with autism, for instance, so they're personally interested in autism as a psychiatric category. But coming to your question, there's a lot of really interesting work and a lot of opportunities now that we've been actually using in our lab as well to look at the question of processing about faces, eye contact, et cetera. Right now, how much eye contact are you making with me? How much eye contact am I making with you? It is extremely variable. I mean, the eyes move around. They carry a lot of information. You know, socially, there's a gigantic range there. It's data that are now fairly easy to quantify and collect in hundreds or thousands of people using their webcams.

1:38:27And so we have a study going on where people watch, for example, a Zoom video, other people interacting, talking, and we use the webcam on their laptop to record where they are looking on the screen when they have that Zoom video going on. So we can quantify across large numbers of people. And the basic finding has been that people who are further along score higher on this dimension of the autism spectrum of social interaction with just questionnaire-based measures or a psychiatric diagnosis, make less eye contact, as well as other features. So we're looking at contact with the person who's talking, distraction to other things.

1:39:09We have experimental features where there's a person talking, they're making eye contact, there's a TV or something that goes on in the background, and we can quantify to what extent is your visual attention, your gaze that we can quantify from the webcam, captured by somebody looking, somebody talking, somebody smiling or laughing, the TV going on in the background as a distractor. And we can put all of that into a big model and ask, what is it that normally drives visual attention? And what is it that distinguishes people with autism and where they would look? And the basic answer is that the social features like eyes or who's talking have less of a weight on where autistic people would look than the distractors, but they tend to be more distracted, and that that is, we've been doing this study every month now for a year, that seems to be a temporally stable personality trait-like feature of autism spectrum disorder.

1:40:04So it fluctuates to some extent, and we're trying to quantify, does it interact with whether you've slept badly the night before, or you're stressed, or other things that can change, those do have an effect. But the answer seems to be it's fairly temporally stable, and it's almost like a signature for individuals. So there's some people that are real face lookers and they look at faces a lot. And there's some people that look at faces hardly at all. And that seems to be stable across time and like a basic personality trait.

1:40:33Andrew Huberman:In this population of people diagnosed with autism? Across the board, for everybody. I see. If I just take the general population, on average, it's the case that those people who would have a diagnosis of autism or who score higher on autistic traits, even if they don't have a diagnosis, look less at faces. But across everybody, it's the case that some people look a lot at faces, some people don't, and that that's temporally stable. So in general right now, if you quantify it from this podcast, how often do I make eye contact or look at you? And then you ask, you know, like in a classroom or in a lab meeting, how often do I make eye contact?

1:41:07It would be similar proportion that I'm just like not a face looker or eye looker and you might be. It's like a stable personality trait. And it's associated coarsely with this dimension in autism spectrum disorder. But of course, the million-dollar question is, what else is it associated with? Is it predictive of career success? Is it predictive of anything else? And so we don't know. We're measuring everything else and getting lots of questionnaires on these people to ask, what are the associations? And is there any causal hypothesis that we would come up with that if you don't look at faces a lot, there's some consequences.

1:41:45If you look at faces a lot, there are other consequences. If that were the case, we're not there yet, that would make very interesting predictions. Well, maybe I should be looking at your face all the time. The podcast would get a million hits or who knows what.

1:41:59Andrew Huberman:Just be you, as we say. Well, I mean, that's another big question which we're looking at in these longitudinal studies, which is a question of to what extent can you change who you are? And, you know, we were talking about emotion regulation. You can regulate your emotions. You can have this metacognitive insight. You can have some control. Can you change if you're extrovert or neurotic? Can you change your personality? And the answer seems to be to some extent. For some variables, it's more than others. But we're trying to quantify that. So we have this big longitudinal data set where we give people tons and tons of questionnaires about their personality, about their mood, about lots of things.

1:42:37And are asking to what extent over time do they get pushed around and that can change? and which ones stay constant and constitutes of the core of their personality that's unchangeable. But I think it's a super, super interesting question. What parts of you can change and what parts of you cannot?

1:42:54Andrew Huberman:Yeah, I think about this all the time. I feel like some people, this is pseudoscientific, what I'm about to describe. They seem to have very high autonomic, what I call like RPM. I have a, it's more of a former colleague because I haven't been working in that field for a while. But if you ever see Botton Roska from Basel, give a talk. Like he moves a lot. He's very electric. He's also very thin. He moves in his brain. He's exceedingly smart. But he has a high basal metabolic rate. High basal metabolic rate. Like a hummingbird. Yeah, but he moves a lot, right? Right, right. And then other people, they move less.

1:43:25Andrew Huberman:I think about this all the time because I'm fascinated by and I love dogs. I go to this AKC, meet the breeds thing every year. I don't go every year. They do it every year. But I highly recommend people go, even if you don't want a dog, because you get to see all the different genetic variation, which, of course, relates to body size. but also temperament. And if you just look at them - Bulldogs are probably more on the slow, mellow side compared to Yorkshire Terriers that are more - Very little spontaneous movement. I think it's one of the reasons why people feel comfortable approaching a bulldog.

1:43:55Andrew Huberman:Whereas like a, you know, pit bulls are always kind of like winding around and moving. But some dogs, it relates to other things, cuteness and whatnot. But some people just seem to have a lot of spontaneous movement. Other people are more stable in their bodily movements. And it does seem to relate to kind of how excitable they are or not excitable they are. So you can imagine like if you're humming at a higher RPM, you can like more prone to action or speech. But it's a super interesting observation because the question, of course, is to what extent does it relate to how their mind is working, right?

1:44:21I mean, as we're talking now and as you were just talking, you're, you know, we're moving our hands, we're moving our body, we're moving our face. You're not just sitting there speaking. So to some extent, all of these bodily movements are interfaced with thought. If I had to sit completely still and not, you know, move, it would be pretty hard to have this conversation, right? So to some extent, bodily movements actually help us structure our thoughts. It's not just like a large language model. It's not just language going on. It interfaces with the body and it punctuates thoughts to some extent.

1:44:54So I think it's super interesting and it's certainly the case that the way that somebody moves their body does say something about how they're thinking as well.

1:45:02Andrew Huberman:Yeah, I've been reading my audio book and I asked them, the sound technicians, to allow me to stand while I read it. much easier to read an audio book and to put inflection. You actually can lean in when you want to emphasize something and you can, you know, point to the words for a moment. But then when you need to work through a passage that needs to be very finely structured with little emotion, because that happens too, if you clasp your hands and do it. So our friend Eddie Chang tells me that the hand representations in the brain are very close to the language center. So these were probably our first tools of language, or at least they co-evolved.

1:45:36Well, your mouth and your hands are the most dexterous and overrepresented in the brain. Right. You can control the world with them and you can move from the most. Yeah, when the COVID pandemic started 2020, we weren't allowed to go on campus at all. So we sat around in our apartments. I sat at home. We had lab meetings on Zoom, only Zoom, and lectures. All the classes were on Zoom prior to that. And then Zoom took off and now most meetings are hybrid. But before that point, everything was face-to-face. I would stand up and lecture. We would talk face-to-face. and suddenly switching to just seeing a bunch of often little just black squares, right, for the whole classroom there on Zoom, that was a hard switch.

1:46:15That lack of an interactive nature, which is something that we're looking at now, I think is going to be super cool. I have a graduate student just starting this. The experiment is this. I would see your face on a screen and that's it. I would see a video of you. I would Zoom with you right now. And we could be having this podcast over Zoom. I actually thought we were going to have this over Zoom, so I'm very happy. It's not over Zoom. Always better in person. And then you're here in person, right? And it feels different. It feels different. And so we're sort of trying to parameterize that degree of social realness, of social interaction.

1:46:45And then we're doing that with people with autism, asking where does it change and how difficult is it for people with autism to interact with another person? Is it equally difficult over Zoom? Is it equally difficult over Zoom if you have the selfie camera turned off and the other person can't see you and you know that? And so we're trying to look at the degree of actual social interaction as a relevant dimension. And I think it makes a huge difference. I mean, it feels completely different being face-to-face that if you're on Zoom, let alone if I just watch a video that's not actually aligned in time.

1:47:18Andrew Huberman:The way I described the kind of higher or lower RPM before perhaps made it sound like one or the other was better. But I think sometimes about like Alex Honnold, who again, who was a guest on this podcast. And there have been claims that his amygdala doesn't react as much. Anyway, we could talk about that. I think Alex kind of like maybe chuckles a little bit at those studies because he does experience anxiety and fear, just not in the context of this like highly trained situation he's put himself in every single day for so long. But I do have to wonder whether people who go out on long runs, for instance, there's not a lot of talking going on.

1:47:51Andrew Huberman:Or Alex, he's devoting his physical and mental energetic resources toward climbing and figuring out how to navigate high-risk, high-consequence situations. You're probably just in flow. You're just like totally absorbed in what you're doing. If you're doing Alex Honnold-type climbing. Once he's got it, but like to work out the puzzle of like with ropes first of how to maneuver so that he can actually free solo it is a remarkable thing. But I almost get the impression that if people speak less, that they're able to devote more mental and physical resources to the thing they're doing. I never ran ultras, but I recall like running, you know, I used to run like a long eight to 10 mile run on Sundays used to be a thing.

1:48:29Andrew Huberman:Now it's getting shorter and shorter run. I have to go get it back, but come back from those. And there's a fatigue component that confounds what I'm about to say. But one is a lot less reactive when you spent a bunch of time just in your own head and you've learned to tolerate the voice in your own head. I find that I'm much calmer after I've spent a bunch of time alone because I've gone through that kind of initial stage of the mind fluttering. And then you want to communicate with people and I'll lock up my phone in a box these days to do real work. And I come out of it and things come my way and they're sort of out there and over there.

1:49:01Andrew Huberman:And unless they really demand my attention, they kind of just don't grab me. Whereas I think when we're highly engaged in our own mental dialogue, it's almost like we're trying to converse with the world. So I think there's real value to doing these solo treks and to devoting time to getting past that need to engage with the world. I think it's very, very useful. Yeah, I mean, I'm sure it's idiosyncratic. It'll vary. But I think that particular aspect that you mentioned, that you can just be comfortable in your own mind and that that's beneficial, I think that's a big part. It's a big part of lots of training techniques and big part of lots of meditative techniques that you just – but again, it's very individual.

1:49:40It's not just sort of one size fits all. But the ability to not just be driven by sensory input and be comfortable with your own mind. It's not like you're doing nothing at all. You're training. You're training your own mind to be comfortable. And I think the consequence of that is then subsequently when you encounter challenges in the world, you're actually better equipped to deal with those and better equipped to regulate your emotion. But when you're just at peace with yourself, if you're not doing nothing, your brain is being trained all the time. And it's being trained in a useful way. And I think the ability to detach and decouple from the constant challenges and sensory information that's normally coming in is like sleep.

1:50:19Allows the brain to actually train itself and focus on particular internal regulation strategies that are then subsequently useful for dealing with the world later.

1:50:29Andrew Huberman:Could we say that one form of potentially useful emotional intelligence or social intelligence training is to just spend some time in your own head, either moving or not moving? I mean, you could do it meditating or you could do it running, but to just resist the temptation to get pulled out into the world and just get good at just sitting with these things that we call emotions and thoughts. I think so, especially, again, it's going to be individual and it's going to vary. But I think so, especially if you can get some kind of metacognitive or reflective awareness and work on what is going on in your mind.

1:51:02And ultimately, it's training control. It's training control of your emotions and training control of your thoughts. And if you're constantly bombarded and just dealing with stuff coming in, you don't have time to do that. It's called social media.

1:51:16Andrew Huberman:Exactly, yes, of which I have none. And so if you're just by yourself, you know, if you're running or if you're meditating or if you're trained up, if you're in an ice bath, I think you actually get a particular type of internal training that you just don't have the leisure to get if you're bombarded by social media, for instance. Yes. You know, every beginning of my lab meeting, now people have their laptops open and their phones out. We put them down and we actually have five minutes of silence, a sort of meditative silence to people to clear their minds. Really? Yeah, five minutes or three minutes at the beginning of every lab meeting, we have a short meditative session.

1:51:52I put a picture up of some beautiful beach on the north shore of Kauai in case people want to look at that. But many people just close their eyes. People can do whatever they want, but the idea is to clear your mind and focus and relax and get into a frame of mind where you're actually now most receptive to listen to the research presentation that's coming up. because you come in and your mind is all over the place and there's an email here and the phone is going and your mind is buzzing. So quieting that, finding some focus, and then being able to engage subsequently much better with the real world, listening to the talk.

1:52:30I think that helps and we do that every lab meeting, Mondays at noon, seems to work for people. How long have you implemented this? We started it in 2020 when George Floyd was killed specifically to remember George Floyd. So there was a very specific starting point because many people were upset and we figured we needed some kind of remembrance or just a moment of silence to acknowledge things. And then it morphed into, you know, you can remember whatever you like, you can just relax. And then it sort of morphed into this idea, well, you know, let's just have a moment of silence and just like recalibrate from the busy world and everything that's just been going on to now, you know, I mean, it's good to do on average every day in any case, but certainly right now before we launch into the research presentation at a lab meeting.

1:53:20So it sort of morphed from a moment of silence to remember somebody to a short meditation, essentially.

1:53:27Andrew Huberman:I love it. My neuroscience colleagues are doing ice baths, training for 100-mile races, and doing... The question is, is it helping my... Am I getting more nature papers as a consequence of any of these things? That's a different metric. That's a different metric. You seem like a happy, vital person. I'm happy. And you're writing books. And you're doing public education here in addition to all that. I'd like to actually stay on this meditation thing for a moment. Rick Rubin, famed music producer, came on this podcast. He also happens to be a friend of mine. And right as we sat down, he said, can we do some coherence breathing first?

1:53:58Andrew Huberman:He plays it. It's like a tone. You do some inhale, exhale. You know, he likes these transition tools. Breathing exercises are great. Yeah, these transition tools and they will increase your heart rate variability and these kinds of things. But I think that one of the most interesting and understudied things in our field is task switching, whether it's emotional task switching or cognitive task switching. Like we assume the brain operates in step functions like, oh, I'm out on the street, I navigate traffic, I park my car and I come in and I podcast. And what you're doing at the beginning of this lab meeting, on the one hand, is a meditation, but you're pivoting the brain circuits toward what comes next.

1:54:36Andrew Huberman:Yeah. I don't think we talk enough as neuroscientists about the fact that the brain doesn't just immediately switch over, that you're carrying residual activity from whatever you were doing before. Yes, yes. There's a cost to that, a well-known cost. So as soon as you switch into something, there's a cost carried over from the previous task, and you're much slower and it's more difficult for the couple of next trials on the new task. So there's always a switching cost, which shows you that switching is hard for some reason. And there's a couple of theories for why it should be hard. There's some residue, some sort of inertia being carried over previously.

1:55:11There's some reconfiguration in the brain required between what you were doing in the previous task and the new task. But all of those seem to require some effort. And it's definitely a skill and something that people are looking at a lot in brain recordings in humans and thinking a lot about how to design into AI. That ability to switch quickly and knowing how to switch, anticipating when to switch is a hugely important skill.

1:55:36Andrew Huberman:And we don't teach it. Like here we are talking about emotional intelligence, social awareness, and these kinds of things. And I think most people think, oh, we should sit down and look at a bunch of faces and learn to detect the subtle cues in faces. or we should make more eye contact. And what I'm hearing today is, while some of that might be true, most things are pointing in a different direction. We had a guest on this podcast, DJ Shipley, who's a former tier one SEAL team operator. That's another high risk, high consequence world, but then he's out now, he's no longer deploying. And he talked about his routine for coming home.

1:56:05Andrew Huberman:It's like, he knows he's rehearsing as he comes out of the car, just like as if it were an op. You know, I'm gonna hit the door. My daughter's gonna come running from this direction. My other daughter's gonna come in. Patsy's gonna be in the kitchen. Moondock's going to come charging at you. But he's rehearsed it and he knows exactly where he'll set his bag so he can scoop his daughter up. People either chuckled or I think were kind of taken aback by that until he said, but this is the way that I know I can drop everything from the day and be at my best when I enter that environment. And, you know, this is the kind of a quote unquote, like hyper Y chromosome version of kind of home and family life.

1:56:40Andrew Huberman:but it was remarkable what the comments when we ran this clip on social media the men were all kind of like in awe like you have a system dude and you follow it and the women were like yes fantastic like this is somebody who's prioritizing how he shows up he's leaving everything else outside which is a kind of you know it's a more of a 1950s version of that skill being able to switch is super super important it was super important and it's trainable it's largely trainable. And I think if you have meditative exercises, they train exactly that. It's a huge switch, right? You're switching from like constantly being bombarded and dealing with stuff in the world to suddenly putting all of that aside and just being inside.

1:57:19And it has health benefits. You know, Richie Davidson, for instance, I don't know if you have... Yeah, we had him here.

1:57:25Andrew Huberman:Yeah, phenomenal guy. He studied Tibetan monks and long-term meditators who've meditated 10 ,000 hours or whatever, which we can't afford to do. But he has a lot of studies on, even for the rest of us, short stretches of meditation, regular meditative exercises. These done well-controlled studies have demonstrable health benefits for sure. So again, it comes back to this issue of variability. Being able to switch and having lots of variability and training that is definitely beneficial. It's beneficial for just basic physiology. It's beneficial for emotion granularity and emotion regulation. It's beneficial for control of thought as when you're being externally oriented versus meditating.

1:58:08All of those are, to a large extent, trainable skills in variability and control.

1:58:15Andrew Huberman:So the experiment I'd love to see done, maybe your lab will do this, would be what is the cost of tasks switching if you do or do not insert this five minutes of silence? because you're spending five minutes and we know the transition is choppy into the next thing that you're doing. So there's some overlap there. But by introducing the period of silence, you reduce the amount of time in order to switch your brain over to this new mode. Presumably, you're seeing positive effects in these lab meetings of doing it. Yeah, we should do a study. It would be, you know, we would have to think about the right controls.

1:58:48We are looking at task switching, actually in these brain recordings in epilepsy patients. We're looking at single unit recordings and how those representations change when you switch between tasks. It's a great study. We're just working up the analyses now. But we don't have the intervention that you were just speaking about, so we don't have half the patients are getting meditative training and half are not. But the extent to which an intervention like that can improve your ability to switch or some other concrete metric, I think that's, yes, those are exactly the types of studies that should be done.

1:59:19I think Ritchie's probably doing studies like that.

1:59:21Andrew Huberman:They did a study of five minutes of meditation per day and showed that people experienced tremendous increases in anxiety during the initial phase of the study, like just having to sit there with your thoughts and let everything stir. I actually think of short meditations like that, at least initially, as another version of the ice bath. Well, it is. And I think when we started and, you know, we have new summer students coming in the lab and say, okay, I don't usually say too much. Okay, we're going to just like three minutes of silence. And everybody's like this. And these summer students are looking around.

1:59:54What's going on? It's very stressful, right? And if you just tell them, well, just like don't do anything. I mean, this is obviously extremely difficult for young children. Don't do anything, right? Just be completely silent and quiet for one minute or five minutes. It is hard to inhibit behavior. It's really hard to do. But it's trainable. It's completely trainable. And a big part of it, you know, we're in this same conference room that David Anderson has his lab meetings in, which is where I can always see that it goes on for hours and hours. It has glass walls. And so people are walking around outside, looking at us sitting there in silence, pretty wondering, oh, not much progress being done in that lab meeting.

2:00:30So there's that whole social perception aspect. But again, once you get over that and get used to it, it's very easy to do these exercises. And it's definitely a trainable skill for sure.

2:00:41Andrew Huberman:Yeah, we were on the East Coast in Annapolis at the Naval Academy. These are very accomplished students, almost 4 ,000 of them. And one of the most incredible things about that environment is everyone goes into the cafeteria for lunch. And all of a sudden, a bell sounds and you could hear a pin drop. But there's thousands of people around you. Yeah. You hear a bell again, the meal begins. Walking into the auditorium, it's shuffle, shuffle, shuffle, talking, talking, talking, talking. Boom. It's a step function. They're training this in themselves. Yeah, yeah. And the other thing, no phones. No one has phones during the day.

2:01:16Andrew Huberman:I think they get an hour where they can access their phones. I normally, my phone, it's on right now because you guys wanted to text me. But normally my phone is off or I don't have a phone on me. And zero social media. Yeah. Not on X and not on Facebook and not on Instagram. Zero. And whenever people ask me, they say, oh, can I hook you up with LinkedIn or whatever? I'm not on LinkedIn. I don't care what LinkedIn is. They're always surprised. And they say, well, why are you not on these social media? And I say, why would I be? I'm already above 100 % in terms of people emailing me. I Oh, I'm, yeah, zero.

2:01:54Andrew Huberman:Love that you've given yourself permission to do that. I put social media on a separate phone so that I can really track my time on there, and I just use it only to post, read a little bit, and then I'm out. I just, I can't take the mental noise. Before we started recording, you mentioned that you fortunately successfully overcame a bout of illness. Yes. I'm curious whether the process of going through that, the diagnosis, the treatment, and then emerging from it, thank goodness, healthy, had you at times thinking about the science of emotions. I mean, that's an emotional experience to say the least.

2:02:27Andrew Huberman:You don't have to share with us exactly what it was, but were there times when what your knowledge of the brain's ability to process emotions, for better or worse, was a useful tool to you in that context? I guess so. I mean, you know, only in the most indirect sense, but I guess it's about emotion regulation. Well, it's about two things. I think it's about emotion regulation. So, you know, initially when you get a diagnosis that reminds you of your mortality, it's sort of a mixture of, you know, fear, sadness, worry, you know, all these negative emotions. And so you're regulating that and it's interpersonal for sure.

2:03:05So interpersonal emotion regulation between me and my wife, us talking about it. So that's like a huge part of the process. if you're not regulating those negative emotions anymore, but you're buying into, you're getting more other emotions like awe, gratitude, acceptance, all of these emotions we were talking about before that I think are largely uniquely human that really make you appreciate and be just grateful for what you have. So that whole process of regulating the sort of immediate stressors and then coming to having more gratitude and awe in everyday life. And then, you know, also, I mean, I think one big consequence of anything like that is that you have this metacognitive perspective on your lifeline and, you know, where you are, how much time you have left, and how to value that and what to do and what to plan and how to allocate your time to things that are worthwhile.

2:04:05And so in my case, one of those components was, you know, signing up for this 100-mile ultra marathon, starting to train for it, and then just pushing through all of that. So, you know, one of the consequences of the therapy for this was I had lots of joint pain and lots of fatigue. So I tell my doctor about that. He says, that's great. That means it's working. It's like, yes, but the side effects are preventing me from training for a 100-mile race. And so pushing through that, I think it just makes you grateful for what you have and makes you just be in awe of the fact that, you know, we were briefly talking about consciousness before that there's a world there at all.

2:04:42You tend to have this perspective that physics gives us of the way the world works, that, you know, the world is going on, and when you die, you get plucked out of that and everything else goes on. But from a neuroscience perspective, it's kind of the opposite. You get the sense that the whole world is actually a construction of stuff in your brain. And as you get older, little things drop out and various people die and you're unable to do things, and eventually you lose the whole world. So rather than thinking of death as we normally do, as the world loses you, the neuroscience perspective is the inverse, which is you lose the world.

2:05:19So you have like a couple of decades left and then you're going to lose everything. And that's coming. So live it up.

2:05:27Andrew Huberman:I love it. And thank you so much for being willing to answer that question. Sure. Throughout today's conversation, I'm struck by the fact that your work plays such a prominent role in your life and your life and your work, even if we weren't necessarily connecting the dots in that way. The fact that you do practices specifically to tap into your autonomic nervous system, emotion regulation, and at the same time, the fact that you look at neural circuits and do extremely well-controlled studies to explore the mechanics that translate to everybody. Like this is a, in case anyone hasn't told you, and because I sit at a unique vantage point, both having done academic research and now in public health communication, people need to hear this and see and experience scientists like you.

2:06:12Andrew Huberman:So thank you so much for coming here today, for being willing to open up about some of this, and frankly, for doing the work that you do for so many years at such a high level. And I'm so grateful that you're writing yet another book. If it's not out yet, we can't put a link to it just yet. But when it comes out, I'll surely get a copy. And even though you're not on social media, I'll be sure to talk about it after I've read it. Because as I did the prior book that you wrote with David. Thank you very much, Andrew. It was a pleasure being here. We'll stay in touch. And maybe at some point I can tell you that I finished a 100-mile race and the book got published.

2:06:43Excellent. Thank you.

2:06:44Andrew Huberman:I have no doubt that you will. Whether I join you for that 100-mile race is a completely different story. But thank you so much, Ralph. Appreciate you. Thanks, it was a pleasure. Thank you. Thank you for joining me for today's discussion with Dr. Ralph Adolphs. To learn more about his work and to find links to his previous and forthcoming books, please see the link in the show note caption. If you're learning from and or enjoying this podcast, please subscribe to our YouTube channel. That's a terrific zero cost way to support us. In addition, please follow the podcast by clicking the follow button on both Spotify and Apple.

2:07:14Andrew Huberman:And on both Spotify and Apple, you can leave us up to a five-star review. And you can now leave us comments at both Spotify and Apple. Please also check out the sponsors mentioned at the beginning and throughout today's episode. That's the best way to support this podcast. If you have questions for me or comments about the podcast or guests or topics that you'd like me to consider for the Huberman Lab podcast, please put those in the comment section on YouTube. I do read all the comments. For those of you that haven't heard, I have a new book coming out. It's my very first book. It's entitled Protocols, an Operating Manual for the Human Body.

2:07:45Andrew Huberman:This is a book that I've been working on for more than five years. And that's based on more than 30 years of research and experience. And it covers protocols for everything from sleep, to exercise, to stress control, protocols related to focus and motivation. And of course, I provide the scientific substantiation for the protocols that are included. The book is now available by presale at protocolsbook.com. There you can find links to various vendors. You can pick the one that you like best. Again, the book is called Protocols, an Operating Manual for the Human Body. And if you're not already following me on social media, I am Huberman Lab on all social media platforms.

2:08:22Andrew Huberman:So that's Instagram, X, Threads, Facebook, and LinkedIn. And on all those platforms, I discuss science and science-related tools, some of which overlaps with the content of the Huberman Lab podcast, but much of which is distinct from the information on the Huberman Lab podcast. Again, it's Huberman Lab on all social media platforms. And if you haven't already subscribed to our Neural Network newsletter, the Neural Network newsletter is a zero-cost monthly newsletter that includes podcast summaries, as well as what we call protocols in the form of one to three page PDFs that cover everything from how to optimize your sleep, how to optimize dopamine, deliberate cold exposure.

2:08:56Andrew Huberman:We have a foundational fitness protocol that covers cardiovascular training and resistance training. All of that is available completely zero cost. You simply go to Hubermanlab.com, go to the menu tab in the top right corner, scroll down to newsletter and enter your email. And I should emphasize that we do not share your email with anybody. Thank you once again for joining me for today's discussion with Dr. Ralph Adolphs. And last, but certainly not least, thank you for your interest in science.