What Your ED Is Really Telling You About Your Heart, Blood Sugar & Hormones - Urology Roundtable

16 Jun 2026 · 1 h 33 min · 33 chapters

Ask about this episode

Ask anything about it. ChatGPT or Claude reads this page and answers with the times it was said.

Connect VO and ask about every podcast you hear, including the moments you saved. Add to ChatGPT · Add to Claude

In short

Erectile dysfunction (ED) and low testosterone (low T) as “check engine lights” for underlying heart, blood sugar/metabolic, hormone, depression, and cancer risks; how obesity and metabolic syndrome drive testosterone decline; and when testosterone therapy is appropriate versus lifestyle/GLP-1 approaches.

Key claims

ED/low T can precede cardiovascular disease by 3–5 years; low T is linked to depression, diabetes, cardiovascular events, prostate cancer, and other conditions; “age-related decline” is often misnamed—healthy aging shouldn’t drop T below ~300 without comorbidities; losing ~10% body weight can raise T; testosterone is essential (not just a lifestyle “nice-to-have”) and stigma/“myths” prevent treatment; testosterone dosing should be symptom-guided with careful monitoring (avoid sustained super-physiologic levels; manage erythrocytosis).

Notable examples

T4DM study (testosterone vs placebo with lifestyle) reported reversal/prevention of progression to type 2 diabetes; TRAVERSE trial (5,246 men) found no increased heart attack risk and FDA removed the cardiovascular warning (Feb 28, 2025).

Guest backgrounds

Dr. Larry Lipschultz, Dr. Toby Kohler, Dr. Mike Harrow—urology/andrology specialists discussing evolving testosterone science, dosing, receptor sensitivity (CAG repeats), and patient management.

Written by AI. May contain mistakes. Listen to the episode to check what was said.

Chapters

Tap a time to open that second in VO

Understanding Erectile Dysfunction and Health Risks

0:00 to 1:00

Learn about the health implications of erectile dysfunction and its connection to serious conditions.

“The penis predicts the first heart attack by three to five years.”

The Importance of Weight Loss for Testosterone

1:00 to 2:00

Discover how losing weight can boost testosterone levels and improve overall health.

“It's not any longer what testosterone does.”

The Role of Lifestyle Modifications in Treatment

2:00 to 4:00

Explore how lifestyle changes and testosterone therapy can work together for better results.

“narrative and also I think even more importantly, changing the science.”

Breaking the Stigma Around Testosterone

4:00 to 5:00

Understand the stigma associated with testosterone and its effects on men's health conversations.

“make sure they're on depression, check a T level.”

Evolution of Testosterone Treatment in Medicine

6:00 to 9:00

Learn about the historical changes in the understanding and treatment of testosterone deficiencies.

“The work of one patient has changed how testosterone was a wonder drug and essential and vital for both men and women to being characterized as the devil or fuel for the fire.”

The Myths Surrounding Testosterone and Prostate Cancer

9:00 to 12:00

Investigate the misconceptions around testosterone and its link to prostate cancer.

“And nobody gives a second thought to getting a prescription for glass and seeing better.”

The Effects of Aging on Testosterone Levels

12:00 to 14:00

Discover how aging affects testosterone levels and what can be done to mitigate its decline.

“Specifically decade by decade, we know it goes down.”

Understanding Age-Related Decline in Testosterone

14:00 to 22:05

Explore how aging and obesity affect testosterone levels and overall health.

“But it's not enough to make you severely symptomatic unless you have something.”

The Role of Testosterone and GLP-1 in Health

22:18 to 28:00

Discuss the implications of testosterone treatment and the interaction with GLP-1 medications.

“I have another, maybe it's a little bit controversial.”

Understanding Testosterone Levels and Guidelines

28:00 to 29:19

Learn about the AUA guidelines for testosterone levels and patient considerations.

“Everyone above this number must feel good.”
Show all 33 chapters

The Importance of Patient Symptoms Over Numbers

29:20 to 31:30

Discover why treating patient symptoms matters more than strict adherence to testosterone levels.

“Well, there is a commercial product, FDA approved, and its maximum dose is 0.5, 100 milligrams a week.”

Genetic Factors Influencing Testosterone Sensitivity

31:31 to 33:33

Explore how genetic factors, like CAG repeats, affect testosterone treatment outcomes.

“And I think those of us, like you say, that was a great point.”

Dosing Considerations in Obese Patients

33:34 to 36:29

Learn how obesity influences testosterone dosing and receptor sensitivity.

“So yes, I felt amazing when I was 25 with a testosterone 450.”

Microdosing and Its Benefits

36:30 to 39:26

Understand the trend of microdosing testosterone and its advantages for patients.

“to be at higher levels to feel the benefit.”

Microdosing and Its Benefits

39:27 to 41:26

Understand the trend of microdosing testosterone and its advantages for patients.

“The patients like it because a lot of men get very tired with intramuscular injections because it's painful.”

Understanding Erythrocytosis and Testosterone Levels

42:05 to 44:18

Explore the risks associated with erythrocytosis and natural testosterone levels.

“Hey, living longer doesn't mean living less vital.”

Testosterone Levels and Performance Enhancement

44:19 to 46:22

Discuss the implications of high testosterone levels and performance enhancement in athletes.

“problems with sperm production, these kind of things.”

The Traverse Trial and Cardiovascular Risk

46:23 to 48:34

Learn about the findings of the Traverse trial regarding testosterone and cardiovascular events.

“And again, we're not talking about super physiological levels, but then they go, oh, my sporting career is over.”

Funding in Medical Research and Its Implications

48:35 to 50:34

Examine how funding sources can impact medical research outcomes.

“So big trial, a lot of money spent on it.”

Ethics of Testosterone Treatment

50:35 to 56:00

Discuss the ethical considerations of treating low testosterone levels in patients.

“I mean, gels and injections are different.”

Understanding Low Testosterone and Patient Advocacy

56:00 to 1:02:15

Learn about the importance of advocating for testosterone treatment and how to approach healthcare providers.

“And he doesn't really have significant symptoms.”

Emerging Trends in Peptides

1:02:20 to 1:08:23

Explore the potential of peptide treatments and their specific applications.

“I don't want to talk about necessarily the GLP ones, but the other peptides.”

Erectile Dysfunction as a Health Indicator

1:08:23 to 1:10:02

Understand how erectile dysfunction can signal underlying health issues.

“So this is a really interesting statement here.”

Understanding Erectile Dysfunction and Heart Health

1:10:02 to 1:13:19

Learn how erectile dysfunction can be an early warning sign for underlying heart issues and metabolic diseases.

“Well, yeah, it's a terrible, they can't get erections.”

The Gap in Men's Health Screening

1:13:20 to 1:15:51

Discover the lack of health screenings for men and the consequences of neglecting routine check-ups.

“But that's what's happening in the world.”

The Importance of Early Testosterone Screening

1:15:52 to 1:18:19

Understand the necessity of testosterone level screenings before the age of 40 for better health outcomes.

“to send you for even baseline testosterone or whatever?”

Vasectomy and Reversal Considerations

1:18:20 to 1:20:55

Gain insight into the procedures, outcomes, and misconceptions surrounding vasectomies and their reversals.

“Fifty percent got formal training on sexual medicine, like how to, you know, sexual medicine and how to approach ED.”

Varicoceles and Their Impact on Male Health

1:20:56 to 1:24:00

Learn about varicoceles, their effects on testosterone and infertility, and the importance of diagnosis.

“His point is also you only want to go to the center of excellence.”

Understanding Varicoceles and Testosterone

1:24:00 to 1:25:02

Explore how varicoceles affect testosterone levels and infertility in men.

“Because it could be true, true, unrelated.”

The Importance of Testicular Self-Exams

1:25:02 to 1:27:35

Learn the significance of regular testicular self-examination for cancer detection.

“But you'll know if a man checks his own testicles and one's really small and it used to be the same size as the other side.”

Testicular Cancer Prognosis and Fertility

1:27:35 to 1:30:36

Discuss the implications of untreated testicular cancer on health and fertility.

“The knuckle is identical to what a cancer feels like, right?”

Environmental Risks for Testicular Health

1:30:36 to 1:31:44

Investigate the environmental factors contributing to infertility and testicular cancer.

“that theoretically can affect sperm production because you're making millions of sperm a day.”

Final Thoughts on Men's Health

1:31:44 to 1:33:13

Gain insights on the overall health implications of low testosterone and infertility.

“One thing, and that is we've shown that poor sperm production, infertility, is a metric of a man's health.”
Hear the part that matters, and keep it.Open this episode in VO. Double tap your headphones to save a moment as you listen.
Get VO free

Transcript

Automatic transcript. May contain errors.

0:00The penis predicts the first heart attack by three to five years. Healthy man should not have ED. It's a symptom of something more going on. That's a symptom of depression, cardiovascular disease, prostate cancer, diabetes. If you have low T or ED, look at what the cause is because it could be potentially life-saving.

0:17Dr. Gabrielle Lyon:74 % of Americans are either overweight or obese. Every decade by decade, the T levels are going down. And if you match and look at obesity in the United States, obesity is going up. The good news is, cut 10 % of your weight, all of a sudden, Boom, T starts going up, more T available for your muscles, for your energy, for your sex drive. Whenever you're starting to make gains, your T gets better and better. He may lose it, but he may gain it back again. And sometimes these patients need to use the testosterone in conjunction with the lifestyle modification to get the best outcome. It gets them to the gym.

0:47It keeps them in the gym. It gives them a different mindset. Yeah. Lifestyle modification is great, but sometimes you need something to get them started. And testosterone really does help.

0:56Dr. Gabrielle Lyon:We don't talk about the elephant in the room. which really is the stigma. It's not any longer what testosterone does. I mean, you are all still clarifying and teaching the science, but the stigma is so heavy. Other people are gonna feel horrible. This is a fact, but I feel like every man should know.

1:24Dr. Gabrielle Lyon:Well, this is the first ever Roundtable, and we have Dr. Larry Lipschultz, Dr. Toby Kohler, and of course, Dr. Mike Harrow. Welcome. Thank you. Great idea. Well, it wasn't mine. I have a great team. We need to talk about penises. Oh my God. I know. And it's funny, we joke about this, but there is a disconnect between the science, men's health, andrology, and of course, the public. I think that there is quite a big disconnect, but you guys are changing the narrative and also I think even more importantly, changing the science. So with that being said, I have a few questions of my own. When I was in residency, we weren't even testing for hypogonadism, for testosterone.

2:17Dr. Gabrielle Lyon:And I did a fellowship in geriatrics. This was something that when you think about sarcopenia and muscle mass, I wasn't, we were even looking at, was there a moment in each of your residencies? And obviously this is the way back when, because I'm sure it's shaped to where you are now that you got wrong, but we got wrong. I know it's a bad word, but that you got wrong in your training because even right now there isn't an ease where a patient goes to their doctor and says, I have low libido. I have erectile dysfunction. I have low muscle mass. There isn't this ease of conversation as opposed to, you know, I'm having headaches or I'm having shortness of breath.

3:00Yeah, but you have to look at the time. I mean, right now, I think it is fairly common. When I was training, it wasn't. People didn't talk about it at all. So I think it's different now for you guys because you're younger and you've been brought up in the practice where you do talk about it. I don't think it's a taboo topic. And there's so much in the media about testosterone and hypogonitis. I think it's fairly common. Oh, for sure.

3:28Dr. Gabrielle Lyon:What about both of your experiences? Yeah. Go ahead, please. Well, he trained me. Sorry, everything I learned was from him. It's like a father-son situation. But we learned a lot along the way. Look, the past 25 years, we learned about the fact that patients who come in with low energy, low libido, rectal dysfunction, We were taught check a T level, but the reality is that same patient comes into a psychiatrist. They check for depression and only depression. That same patient walks into an endocrinologist's office. They just check a thyroid, right? So we're all in our silos and we're now learning that no, we should be checking TSH, check, make sure they're on depression, check a T level.

4:04So we're broadening our scope. What could be causing these symptoms? We learned a lot about side effects. We learned about erythrocytosis. Now we've learned about estradiol. When we were training, we thought men don't need estrogen. women have estrogen let's bring it down with some arimidex men absolutely need estrogen they need estrogen for libido and sexual function and we know it's a mistake to shut them completely down but we didn't know that back then so our education has really evolved over the past 25 years and it

4:30Dr. Gabrielle Lyon:still takes quite a bit of time to then get out to someone who is perhaps trained like me in family practice oh yeah i think family practice is our biggest problem in terms of you know educating primary care doctors in this whole space. Well, they never had it in their training, and it's just changed so much, as Mo said. So, I mean, I think a lot of my patients come in and they've been inadequately treated by their primary care doctors, but I think it's changing. Well, I've had actually the same experience, and Dr. Kohler, you talk a lot about, and I remember this, I watched a lecture that you did at the Andrology Society where you talked about CHAD.

5:10Okay.

5:11Dr. Gabrielle Lyon:And I'm not usually good at names, but I remember Chad. And there was this evolution of the idea of testosterone, the testosterone culture. And where I'm going with this, in the 80s, there was like a roid culture. And this discolored testosterone and testosterone replacement, both in men and women. But in terms of in your training, so I'm sure there's been an evolution from what you. For me, testosterone has been guilty until proven innocent instead of the other way around. Guilty until proven innocent. In terms of causing bad things, right? It's like for some reason, the preponderance of the evidence has to be we have to prove that it's safe.

5:53And there was this switch that got flipped 80 years ago when, you know, the work of Huggins and some, you know, based on one patient, it's amazing. The work of one patient has changed how testosterone was a wonder drug and essential and vital for both men and women to being characterized as the devil or fuel for the fire. And so through my career, when I was at the VA in training, we still worried about testosterone making prostate cancer worse. But it's so interesting about how long it takes ideas and medicine to evolve. Because when I was a resident fourth year, I heard Abe Morgenthaler speak for the first time.

6:30He's like actually no this stops it looks like testosterone may actually be totally safe or actually even helpful for prostate cancer This was for me 25 years ago and every year it diffuses a little bit more But the vast majority of people are still afraid of this prostate cancer testosterone myth Even though it's completely debunked with excellent science just takes a while to get out there Yeah, but I think dr. Kohler nailed it. You asked why family practitioners do not prescribe it. They're still reticent It's fear. It's fear that it causes prostate cancer. It's fear that it causes worsening of BPH symptoms.

7:06It's fear that it causes cardiovascular events, heart attacks, stroke, and PE, right? That's the fear. We know today that's not true, but that takes time to get the word out. You still ask primary care physicians, why don't you prescribe? I don't want to give my patient a heart attack. I don't want to give my patient prostate cancer. But those are myths. Those are not true.

7:24Dr. Gabrielle Lyon:They are myths. I will say that when I started in clinical practice, I was terrified. And I knew that they needed it. I knew that they needed both men and women. And I would call mentors and I would call other people because I had not learned anything about it. And there's risks if you don't treat. And I just want to mention one other thing. Is that people consider testosterone a lifestyle drug. Originally, that was right. In the 80s up to the 2000s, it was a lifestyle drug, meaning something nice to have. But essentially, it's not. It's essential. It's an essential hormone for men and women. And we know that men with low testosterone levels are much more likely to have a heart attack.

8:06Non-negotiable. Men with low testosterone are much more likely to suffer from depression. Non-negotiable. More likely to break a bone. Osteopenia, osteoporosis. Associated with anemia. You show me another blood test that's associated with so many medical conditions in men. There's no other blood test. It's the best marker for a man's overall health. You know, you have to be careful, though, about throwing out the term lifestyle drug and saying, well, we don't want it associated with that. Because there's nothing wrong about changing your life, which testosterone can do. And I think the idea of a lifestyle drug gets a little bit punitive or something, but it does change your life.

8:42Of course. So, I mean, I don't have a problem with saying it is a lifestyle drug, but it changes your life. It's not like icing. It's very essential. And, you know, as humans, we get older, there are invariable changes that we're all fighting against. Right. And like these things I'm wearing right now, like my eyes were just fine 20 years ago. Just yesterday. But now I can't see anything. And nobody gives a second thought to getting a prescription for glass and seeing better. And so to demonize testosterone is like, well, it's low. We shouldn't fix it because it's kind of fighting the natural aging process or whatever you want to think about.

9:18I think it's completely wrong. And that's what everybody's doing. They're fighting. It's all about not aging. We don't have any other hormone. If your thyroid was low, you'd replace the thyroid. If your cortisol was low, if your insulin was low, if there's any other hormone. When estrogen is low, we replace the hormone. But why can't we replace the hormone? But I don't like the word replace. And I think that's gotten way off course because we're not replacing testosterone. We're using it as therapy and we're making it more normal. But men always have testosterone unless they're castrated. Women don't.

9:54They stop making estrogen. And I think that TRT, the female was the HRT. And now we go to TRT, but I don't think it really is. I say this all the time, but it's never going to change. But I don't like the term TRT. When it comes to performance enhancement.

10:12Dr. Gabrielle Lyon:So if we're talking about lifestyle medications, and why is this so important? because if we don't talk about the elephant in the room, which really is the stigma, it's not any longer what testosterone does. I mean, you are all still clarifying and teaching the science, but the stigma is so heavy. It's a schedule three medication with ketamine. And, but if we're really going to unpack that and make it accessible for both the patient and the provider where, you know, Your patient doesn't come to me and then I put them on testosterone. Well, not yours, but proverbial. Patient comes to me and I put them on testosterone and then they go to their cancer doctor or they go to another physician and the other physician is like, I cannot believe this doctor puts you on testosterone.

10:59Dr. Gabrielle Lyon:And hence you see patients undertreated. So just understanding that the relationship between testosterone and then normal life versus performance enhancement. Yeah, and you know, it's interesting. He makes distinction between if I drive up my T naturally I Eat better I exercise I focus on sleep. I Mitigate stress. I accept the fact that stress is like a powerful force of my life That's gonna help me not necessarily a bad thing if I do all those things my T goes up and nobody says You're doing something crazy, right? But there's some of us where the testicles are kaput. They're not doing the job anymore, just like the eyes aren't seeing anymore.

11:42Sometimes it needs to be replaced. It's very reasonable. And you're not replacing it. You're supplementing it. Okay. Well, you're normalizing it. Yes.

11:51Dr. Gabrielle Lyon:There was something else also very surprising. These are just a couple numbers and I stand to be corrected. Number one, there is this idea of age-related decline. So age-related hypogonadism. And then when I looked up some of the numbers of testosterone deficiency so i would love to kind of clarify age-related decline is there a normal age-related decline versus deficiency and then is it true that five to six percent of men are diagnosed with depending on their age low testosterone yeah that seems very i just don't understand why has there never been a study looking at decades and the average t i agree so So we know it does go down, but you're right.

12:38Specifically decade by decade, we know it goes down. But aging alone does not cause the testosterone to go down significantly. A healthy 80-year-old man is not going to have a significant decline in his testosterone below 300 if he's healthy. When the patients develop diabetes, obesity, metabolic syndrome, the acquisition of comorbid conditions, that's when you start dropping your T levels, right? So this age-related hypogonadism is a misnomer, right? Healthy patients should not have a decline. You're right. 5.6%, 6 % of patients from the age of 30 and 79 are going to have low testosterone diagnosed by low T and signs and symptoms.

13:17If you just look at low T, that goes up significantly higher. But low T signs and symptoms, up to 20 % of those patients never get treated. So it's an important number to think about. I'm not sure about this that it doesn't decline with aging. because examining a lot of men with fertility concerns, you notice that as men get older, the testicles get smaller and softer. Yes. So, I mean, and they could be very healthy guys. They just don't have the same testicles as a 25-year-old. No, I agree. So something's changing. I mean, I don't think they necessarily have to have diabetes or hypertension. 2 % per year starting at 20.

13:54You're right. So there'll be a decline as we go on. But it shouldn't be enough to throw them down significantly unless they have some illness. Like, I agree, aging will drop it. But it's not enough to make you severely symptomatic unless you have something. And Toby Kohler's used this, and I use it again. It's kind of like the check engine light. If you have ED or you have low T, check what else is going on because something is causing those to go down. Right? We know we have a decrease in postal LH release. when we hit 30s, and it goes down a little bit per year in men. But you can mitigate how bad it is for you.

14:34And you can certainly make it a lot worse if you don't take good care of yourself. So there are some age-related changes. We're not going to live forever no matter what we do, unfortunately. But if we do all the right things, we can still have a super high T, super awesome erections in our 70s, in our 80s, as long as we take good care of ourselves.

14:51Dr. Gabrielle Lyon:Does the idea of age-related decline, if we think about statistics, if 74 % of Americans are either overweight or obese, 74 % are going to have, I mean, that's a comorbid condition. But if it is defined, and I know this is a little bit of nitpicking, but if we don't have the conversation, it will remain age-related decline. And we are seeing 50 % of adolescents and youth that are either overweight or obese. how do we imagine that if kids and people are getting obesity and other comorbid conditions earlier then this in my mind becomes an essential treatment yeah it's there's no question that every decade by decade the t levels are going down and if you match and look at obesity in the united states decade by decade obesity is going up at every age group right and weight increased fat increases the risk for having hypogonit.

15:4910%, you gain 10 % of your body weight, you're going to actually drop 85 nanogram. You gain 15 % of your body weight, you drop 270 nanogram per deciliter. So it's bidirectional. And so the GLP ones have helped. So you lose weight, you actually can maintain and increase your T levels, but obesity has a bad, profound effect on T levels. It's a feed-forward or reverse-forward cycle. The heavier you get, the more fat you have, the more you convert your testosterone to estrogen, the less testosterone they have, the less energy you have, and you get more and more heavy. But, so that's the bad news. The good news is, cut 10 % of your weight, all of a sudden, boom, T starts going up, more T available for your muscles, for your energy, for your sex drive, and now you have more, now you're starting to make gains, and your T gets better and better.

16:36So it goes both ways. But I think, you know, we have to face the fact that, look, you know, I am older than you guys. I hate to admit it, but I am. because they trained Mo, right? But, I mean, my T has gone down. And I don't have any comorbidities. And I'm not obese. So, I mean, you know, it is what it is. You have to deal with it. I just don't think you can say, well, if I do everything right, my T is not going to go down. It's going to go down. Yeah. I think you can decrease the slope, right? So it's going to go down. It's just that how fast is the slope? And mine's gone down slowly. Yeah. But you're in good health.

17:11I mean, Bo's been in good health. But it's still not what it was. And now the question is, if it is low, should I be supplementing? I mean, do I want a T of a 40-year-old? Or should I have a T of whatever age I am?

17:28Dr. Gabrielle Lyon:But I have a question. Why would there be even a consideration that either you would or you wouldn't? And what do I mean by that? is if a 40-year-old testosterone level, which again, I realize that it's not based on age, some people will have a baseline. And to be fair, many people listening only think about the total team. So if a free testosterone when someone is 40 is anywhere from, let's just pick number 500 to 700, and that's normal for them. And as you get more mature, that's how I said mature. I like that. I like it. The idea that you would replace that of your 40-year-old self, that there would be some hesitation.

18:15You're saying why would there be any hesitation?

18:18Dr. Gabrielle Lyon:Yeah, but to me, as someone who has been a legacy provider and prescriber, why would you even have a second thought? For a long time, I resisted. But I decided I wouldn't. But I agree with you. I mean, like the reality is if you knew that there was a drug, let's call it drug X, that decreases your risk for diabetes. T4DM, large study, prevented the risk of progressing to type 2 diabetes and reverse diabetes. If you know there was a drug that helped prevent… Reverse diabetes. Oh, yeah. Can you just say this again? So this was the T4DM study. It was a study out of Australia, over 1 ,000 patients, randomized to either long-acting testosterone or placebo.

18:54though, over the fact that the time they found that these men who had testosterone actually reversed diabetes or prevented the progression of diabetes. Large study, we call it the big three, it's one of our big three studies, T4DM. So if you know that there's a medication that could potentially reverse diabetes or prevent the onset of diabetes, the medication could actually prevent or help prevent osteopenia osteoporosis. You knew the medication could actually help with depression. You know that theoretically there's some cardioprotective effects, but we can talk and debate that. If you knew that, forget, and it also helped with muscle mass and preventing sarcopenia, and you were low in that medication, why would you not consider taking it?

19:33I just always wonder whether or not people who are taking testosterone are doing so many other different things that they didn't do before. I mean, they're eating better. They're probably exercising better. They care more about themselves or they wouldn't have taken the testosterone. around yeah so it's almost a self-selected group to become healthier sure but i'll take it yeah i understand that but when you look at studies like that i mean do they control for every other variable yeah t4dm you're correct was is testosterone versus placebo but both groups did lifestyle modification done exercise but the t plus the lifestyle modification was much stronger than exactly modification but i think yeah i think if somebody has low t and you want them to exercise as part of lifestyle changes to help with their natural improvement, then if you give them the tea first, they're going to be more likely to exercise.

20:25So it's kind of a self-fulfilling prophecy. Well, of course, not only will you likely have more energy to be able to get up off the couch, but actually, if you do start moving iron, you're going to see progress and be like, get excited. It's going to be a few more cycles.

20:39Dr. Gabrielle Lyon:You don't have an energy problem. Well, you might. You have a cellular performance problem. And thank you to one of the sponsors of the show, Body Health. Now, cellular performance doesn't sound as easy to navigate as low energy, but it's actually quite simple with Perfect Aminos latest addition to their lineup. They're pre-workout. I love this product. Every single day, your body is trying to produce energy at the level you demand of it. Most people are under-fueled, under-recovered, and just plain tired. yet they still expect peak output. I know I do. Perfect Amino's new pre-workout formula is a formula built to support what drives performance, blood flow and oxygen delivery.

21:27Dr. Gabrielle Lyon:If your blood can't deliver nutrients to your muscles, you can't perform, period. By utilizing a targeted nitric oxide blend, it helps increase blood flow to ensure your fuel reaches its destination. With the smooth boost from Perfect Amino's pre-workout, You won't have to navigate the frustrations of a jittery workout, which by the way, too much caffeine can cause, or a lethargic one. Avoid chasing a quick fix for a lack of intensity and start building energy at the source. If you're ready to train hard and recover like it matters, because my friends, it does, don't just get through your workout, fuel it.

Read the full transcript

22:05Dr. Gabrielle Lyon:If you're interested in trying Body Health Pre-Workout, which I highly recommend, go to bodyhealth.com and use the code LION20 to get 20 % off your first order. I have another, maybe it's a little bit controversial. And I mean, it's not really, you know, we're all friends. But if we are seeing obesity, and it's not a treatment for type 2 diabetes, right? At least for women, we don't go, you have type 2 diabetes. If I had to make a decision of your first line intervention, and I had to choose between two drugs, GLP-1 and testosterone, it's never going to be testosterone right um we see i am not sure that we are going to get a handle on obesity and metabolic syndrome we do have an increased use of glp1 but as a provider and as someone who's trained in nutritional science i don't know if we're going to get there that means some individuals are probably going to be more likely at an earlier age willing to look at testosterone.

23:08Dr. Gabrielle Lyon:And then this becomes kind of a dance. Cause I remember when I had a patient and they were in their twenties, they went to urology and this was in New York city. They went to urologists and the urologists didn't want to treat that 20 year old with testosterone because he didn't want to affect his lifelong fertility. So how do we then normalize making decisions at to what age would you actually begin treatment with testosterone? When it's low, but they were in their 20s and there was like but was it low it was low it was low i mean it's like mo was saying i mean if they had uh low thyroid if they had uh problems with diabetes you would treat it so why are you not treating the low testosterone i mean we've shown that you can you can prevent them from affecting their sperm production we know that but the fertility his points well taken is fertility aspect is extremely important you know 20 year olds if you want to put them on lifestyle lifelong medication is a long time for a 20 year old right so the reality is there may be other ways to do it and you could do lifestyle modification but also lifestyle modification helps each one helps individually but uh but but sometimes just weight loss will make it but you can't it's hard to sustain that's what i'm trying to say you say mr smith i need you to lose 20 10 percent of your body weight he may lose it but he may gain it back again and sometimes these patients need to use the testosterone in conjunction with the lifestyle modification to get the best outcome That's what I think, because I think it gives them, it gets them to the gym.

24:34It keeps them in the gym. Yeah, I agree. It gives them a different mindset. Yeah. And so I think, you know, lifestyle modification is great, but sometimes you need something to get them started. And testosterone really does help. Yeah, but you're not touching the elephant in the room. The elephant in the room is the GOP-1's loss because it causes a significant decline in muscle mass, right? And that's important, right? Because if you restrict your caloric intake, you're not going to only lose fat, but you lose muscle. And some studies will say up to 30 % muscle mass. Well, that's a problem, particularly if you're older and you get sarcopenia, right?

25:04There are now new companies coming out making GLP-1 plus SARMs or medications to raise T-levels. Why are they doing the combination? The combination because they're hoping that the T-levels going up will increase muscle mass in that patient that's losing muscle mass with the GLP-1. Yeah, I think, you know, the bottom line is food is too delicious. Yeah. You know, that's why 95 % of all. Speak for yourself. I'm not going to die. I guarantee you. That's why 95 % of diets fail. So I'm very in favor of GLP-1s. And I think there is a danger of sarcopenia with extreme quick weight loss, but it can be mitigated.

25:43Protein intake, exercise, sleep, right? There's powerful trials showing that if you're sleep deprived and you lose weight, it's mostly muscle. But if you're sleeperplete, you're sleeping adequately, you lose much, much less muscle. Right. So all these are protein. So important. Yeah. Yeah. Sleep, protein, exercise, all of all the pillars that you need. But just the GLP one alone. Yes, I would be worried about muscle mass loss, but you don't give GLP one in isolation. You tell the patient, listen, I want you to get 100 grams protein a day. I want you to work out with resistance ring at least twice a week.

26:17I want you to focus on sleep. Yeah. And then you won't have that, you know, extreme muscle loss. when people lose a lot of weight, they also lose muscle, even if it's not from GLP-1s, if it's just from starvation, for example.

26:27Dr. Gabrielle Lyon:Are you seeing an improvement in testosterone with the use of GLP-1s because of the improvement in obesity? Yes. T-levels do go up. Clinically significant? Clinically significant and sustainable. In other words, when the GLP-1s were not around, they would lose the weight, then they would gain it. Then they'd lose the weight and now it's sustainable weight loss and the T-levels stay up. So why would it be sustainable once they stop the GLP once if they stop the GLP ones and then and they gain the weight back T levels start going back down again right right so but these patients stay on the GLP ones I have most of the patients I saw on GLP ones go on maintenance dose so they get to their desired dose the level of weight and then they say I'm not I say 85 % of patients gain every pound back if they stop unless you've changed your lifestyle modification most patients say doc keep me on a maintenance dose oh do we know do we know what I know I'm I'm asking a question I know the answer to, and that is, do we know the long-term effect of staying on GLP-1s for years?

27:28No, but we do know the long-term effect of being obese for many years.

27:32Dr. Gabrielle Lyon:And what about low testosterone? Can we touch on some of the perhaps a little bit unknown consequences of having low testosterone? And then maybe before we do that, defining what is actually low. Yeah. I mean, there's a definition that's with the community. It's 300 nanograms per deciliter. I disagree. I think most of us disagree. There are patients who are at 320, 350, 390 who are symptomatic that may benefit from testosterone therapy. You can't have one number for everybody and say that everyone below this number must feel bad. Everyone above this number must feel good. There should be some kind of range.

28:06And quite frankly, if you give a patient a three-month trial of the medication and they don't get any better, then you could argue maybe this is not for them. But if they do feel better, then you could consider. So my threshold is a little bit higher than the 300. I may go up to almost 400 in patients, particularly if the 40 is low. Talk about the tertiles from the AUA guidelines. Yeah, so I'll give you an example. So the AUA puts out guidelines. The guidelines say that the patient should be between 450 and 600. That's what you're shooting for. So a patient came into my office the other day and said, Dr.

28:38Kira, what range should I be in? I said, according to the AUA guidelines, you should be between 450 and 600. He said, that's great. I'm at 390, so can you raise my levels? And typically, you're supposed to say, well, no, you've got to be below 300 in order for you to put you on T to put you into the normal range. That makes no sense.

28:55Dr. Gabrielle Lyon:That makes no sense. Really, the cutoff should be the lower limit of the range you're trying to get them in. So the cutoff really should be theoretically 450 if that's where you're trying to put them. But I think another thing that patients don't realize, and a lot of the primary cares don't realize that, although the FDA has approved 0.5 as a drug dose with a commercial testosterone product. Can you explain to me what you mean, 0.5? Well, there is a commercial product, FDA approved, and its maximum dose is 0.5, 100 milligrams a week. Testosterone? Yes. I see. And the thing about that, if you give that to somebody and you measure their testosterone two or three days later, it's over a thousand.

29:39Yeah. So, I mean, this business of looking at endpoints, you have to decide, are you going to look at the Nader before their next shot? Yes. Are you going to get it in the middle? Right. And I am not one that's hung up on numbers because I am treating a patient with symptoms. Yeah. How long have you been in practice? I'm not going to tell you.

30:00Dr. Gabrielle Lyon:more because what I've noticed is, um, and there, I think that there's a natural trajectory of a clinician. When I was early on in my practice, I was a stickler for the number. Like this is the number and it takes 20 years of practice. Wait, but it takes 20 years of practice for me who, you know, I still am uncomfortable if it's outside the number, but then maybe if I've been in practice 40 years, I'm much more flexible, but that means there's a huge cohort of physicians and most importantly, primary care, the first line of defense, they're going to feel very uncomfortable if someone comes to them and go, doc, you know, I'm at four 50.

30:43Dr. Gabrielle Lyon:I feel like crap. Let's say I'm living in the middle of Idaho and I, you know, I am in a very rural area, you know, no offense to anyone from Iowa, but maybe it's a rural area. And then it's unfair that both the physician, because we all, if physicians look back and go, gosh, I really wish I would have treated that patient. And then 10 years later, this patient goes through life, and then it becomes 20 years. And then finally, the patient gets treated when the doctor's caught up. Yeah. But it's very different than putting someone in the normal range at the upper normal and then sustained super physiologic levels.

31:16Dr. Gabrielle Lyon:What's the danger of super physiologic? Well, there's a lot. Erythrocytosis, there can be cardiotoxicity, cardiomegaly, ventricular hypertrophy there's been increased mi risk i mean he's done more work on this anyone i know we're gonna we're gonna talk so i mean he's i mean and so but that's it sustained super physiologic levels i accept that if i give someone injectable that there'll be a transient increase in physiologic levels at the beginning and then it goes down pellets it'll go up a little bit slightly higher above and then it'll come down but to sustain super physiologic levels i personally get concerned i mean there's been very good data that you've presented right but But I also think we do get too caught up in the numbers.

31:50And I think those of us, like you say, that was a great point. The longer you're in practice, I think the more you realize that it's not as important as the patient's symptoms. Because that's why you're treating them to begin with. But I have a patient with Kleinfelder syndrome, which is a problem with testosterone. They do not make high levels of testosterone. He's a football player in college, right? So we had to get permission to treat him because he's playing football, which we did. Because, you know, he has a genetic abnormality. He should be treated. So we were treating him with, I don't know, maybe 0.75 a week.

32:28He's huge, you know, like 6, 10, and, you know, 3, 20. I mean, just a big football player. Is 0.75 enough? Well, wait a second. Okay. So then I get a letter saying that I am over-treating the patient. he should only be on 0.5. I said, what happened? I mean, this is after three years of treatment. His parents say, well, somebody new entered the council, whatever they use for the athletes. And I said, I will bet you it's an endocrinologist. It turned out it was an endocrinologist. No one has ever looked at this person. They're just getting a report with a number, and they think the number's too high.

33:08I mean, we know there's biological variability. between humans, right? Somebody's T at 400, they're going to feel great. Other people are going to feel horrible. This is a fact. Whether it's testosterone sensitivity, whether it's the free T and not the total T, there's all these factors that can make you different how you feel. Maybe there's a content is, but I feel like every man should know what their testosterone level is when they're at their peak in their life. When they're 25 years old, they're healthy. They get their baseline T. So yes, I felt amazing when I was 25 with a testosterone 450.

33:41That's a very powerful piece of information. Because if your T is 450 at age 55, it's very unlikely that that's the problem if you're feeling off. If, however, your T is normally at 650 when you're 25 and now you're coming in at 400, to your point, yeah, it's probably low. Another thing that I think we overlook is a patient's weight, body size. I mean, there's a lot of literature on treating people with higher doses because they weigh more and they're bigger. Right. You know, someone, you know, a 150 pound man does not require the same injection as a 250 pound. I mean, they're different. You're right.

34:17And we don't pay enough attention to that. I don't think when we see patients. Do you? I do.

34:23Dr. Gabrielle Lyon:I do think about it. And then I think about this idea that actually I've learned from you guys over at Baylor is this idea of CAG repeats. And in my mind, when I think about obesity, so in skeletal muscle, there's this anabolic resistance. So muscle becomes resistant to this normal stimuli and less efficient. It's less efficient at recognizing utilizing amino acids and protein. And also, and this might be a little controversial, but obese muscle, when fat is infiltrated, it's not as responsive to exercise. There's myosteatotosis. Well, that makes sense. It does make sense. And then that makes me think about the receptors and testosterone, where it's this fine balance.

35:07Dr. Gabrielle Lyon:And I don't know the answer. I'm hoping that you guys can shed light on it for me that if someone is obese, do they require more testosterone to then feel the effect or even get the effect? and i'm sure you worry about estrogen and this um just this dance but is there to say this succinctly a change in the amount getting to the muscle from the with the utilization of testosterone do they require more in obese patients i think it's two different topics so one topic is the sensitivity of the testosterone receptor so it's called the cag repeat so in baylor when i started with Dr. Lipschultz, we started doing this, we do it today.

35:47We take the blood, we send it to the lab, and they give us the sensitivity of the angina receptor. If the CAG is greater than 27, the angina receptor is insensitive, and we show that those patients need more testosterone. Makes sense. It's less than 27. It's sensitive. They need less testosterone. And we're all different. So everyone has their own CAG repeats. So that's different. What you're referring to is the acquisition of obesity. And obesity in itself has many mechanisms in why it shuts down the tea. It aromatizes, increases leptin, increases cytokines. Each one of those take a hit directly on the pituitary and the testicle to shut down the ability of the amount of tea we make.

36:23So you have to give those patients more tea in order for them to compensate for the loss. On this side, when they're insensitive, you've got to give them more tea because they need to be at higher levels to feel the benefit. So they're a little bit different, but both categories need more tea to feel better.

36:37Dr. Gabrielle Lyon:And this creates a huge, I want to say red tape, because providers might not feel comfortable with the dosing. Can we touch on how, and you guys have talked about this quite a bit, but the idea of how do we determine a dose of testosterone? Because you don't necessarily look at all the numbers. but oh i look at the numbers to start treatment but my point is i don't follow the numbers in terms of what i'm going to do when he returned my patient returns in three months i'm going to see how he feels that's my most important guidance is the patient symptoms not the blood test so i have to push back on this just a little bit is that for example i don't feel comfortable increasing the dose of testosterone over 200 even if a patient comes to me and I'm not a urologist, if a patient comes to me, and even if I suspect Cagri, it's because for the general population, it's not as easy to get.

37:36Dr. Gabrielle Lyon:And I remember I have this patient who's a part of Homeland Security and I am only willing to provide 200 milligrams of testosterone because it's outside my comfort zone. And I know that he needs more. Because that's your problem. No, it's your problem because I'm sending him to you. But I mean, I do not have a problem. Would you do that? I typically don't. But I'm not looking at the amount I'm prescribing. I'm looking at the blood level. So I'm looking at the blood level. And so if the blood level, typically you're right, at 200 milligrams a week, I don't need to go any higher. So you're right.

38:15But if for some patients are eating it up faster, metabolizing it faster, and he needs to go higher, potentially. but the reality is it depends on when you're looking at the level. Testosterone is a game. Whenever you check the blood in relation to when you give the medication, you can make that level look like whatever you want. And that goes for anything, a palate, an injectable. I check in, give someone an injection today and check the blood tomorrow. It's very different than when I check it in a week before they give the next injection. So whenever I tell the residents, when you check a blood level, right underneath that, you write when was the last dose given on whatever you're giving because that's going to change the level.

38:53It's very important. But to that point, what we're seeing, what I'm seeing now is more patients are dividing the dose and more patients are microdosing. Microdosing has become very popular where the patient takes, let's say we're going to give them 200 milligrams. They divide it by seven and they do a sub-Q injection every day or they divide it into three. Because I'm seeing fewer side effects. I agree 100%. And the whole reason is you drop the erythrocytosis rate because you're not spiking. And that's helpful. Some people have shown a drop in hypertension rates. You drop the mood swings. So it's a little bit of a hassle, but I think it's so much healthier.

39:29The patients like it because a lot of men get very tired with intramuscular injections because it's painful. And it's much less painful with sub-Q. And with the pharmacies I use, they'll send the patients a larger needle to draw it up and then a smaller needle for them to inject. so they're kind of on the same page and you can drop the dose so 80 so whatever you give im you only have to give 80 sub q and get the same blood level you get the same level the i do want to touch

39:58Dr. Gabrielle Lyon:on the risks of testosterone replacement and really where you were talking about was super physiological dosing and in my mind if you do im technically they would then get a quote super physiological dose once a week. Transient. Transient though. It's transient, but still over time, it's kind of like if I'm eating a cake, I don't know. I know you like cake. If I'm eating a cake once a week, it's like a good listen because you're sitting next to me so I get to pick on you. Thank you to Timeline for sponsoring this episode. Time isn't just about how long you live. It is about the quality of those years.

40:39Dr. Gabrielle Lyon:It's having the energy you need to move through your day without fatigue. The strength to pick up your kids, your grandkids, who knows, someone else's kids, and the clarity to show up as your best self. Now, that kind of strength does go deeper than muscle. It starts with your mitochondria, the energy producing engines inside your cells. We've learned about mitochondria, I don't know, in our fifth grade science class. And here's the reality. As we age, those mitochondria decline. In fact, it's one of the key hallmarks of aging, and it directly impacts strength, recovery, and overall how we feel.

41:14Dr. Gabrielle Lyon:One of the ways your body protects itself is through mitophagy, which helps clear out damaged mitochondria and replace them with healthier ones. And you're thinking, okay, so why is she talking about this? Well, I use Timeline powered by MitoPure because it contains urolithin A, which is a molecule backed by over 18 years of research and multiple human trials, it works at the cellular level to support mitochondrial renewal. It's not a quick fix or a stimulant. It does support your body from the inside out over time. And if you've been considering trying it, it's a great time. Timeline has just lowered their price and you can get an additional 20 % off your first month when you go to timeline.com slash lion and use the code lion, lower price, same science, bigger biceps.

42:06Hey, living longer doesn't mean living less vital.

42:11Dr. Gabrielle Lyon:But even if it's transient, is that without risk? Well, there is some risk because the spikes do cause an increase in erythrocytosis. Which is? A higher increase in red blood cell count, right? So hematocrit goes up. And then theoretical risk if it goes above 54 there's a theoretical cardiovascular risk i use the word theoretical because i have patients in dengar and that's exactly right um hemoglobin hematocrit are above 52 easily and this is called secondary erythrocytosis and there's never been there's been only one paper to show that secondary erythrocytosis increases the cardiovascular rinse this is out of the university of miami other than that there's no data to support this all this data comes from the polycythemia vera data which is a blood discreation it's different Yeah, it's a cancer.

42:52It's very different. But we've extrapolated the polycythemia veridata to the general population, which is a mistake, saying, oh, if you have a high hematocrit, you're more likely to have MI. So I think that that data is evolving, but there's not great data on secondary erythocytosis causing cardiovascular events. So I think that's important to keep in the back of my mind. I've been trying to figure out that number that people want. Like, what is too high? What's the level that's too much? A couple things to think about. So I looked at 100 ,000 men at Mayo Clinic over the last 20 years, and it's actually pretty rare to physiologically exceed 1 ,000 nanograms per deciliter in healthy men.

43:32It happens occasionally. In testosterone? Yes. Testosterone levels above 1 ,000 naturally is pretty rare. Naturally. Naturally. Naturally, right? Okay, so that's an interesting tidbit, right? So if you think, well, if very few men get above 1 ,000 naturally, it's intuitive to think that an average level of testosterone should be below 1 ,000. The other thing to think about is, okay, well, what about people like really super physiological? We know a lot of bad things happen, heart attacks, these kind of stuff.

44:02Dr. Gabrielle Lyon:Is there a number? Well, the data is not great. There's only seven trials where they look at men getting T levels higher than 1 ,800 consistently. And they have a lot of the things that Mo talked about. acne, heart disease, changes in lipid profiles, problems with sperm production, these kind of things. But the bottom line is the FDA uses 1 ,800 as the safety cutoff. 1 ,800? 1 ,800 for trials. So when you're doing testosterone trial, if you exceed 1 ,800 at any point, you're up. That seems a bit high. It's generous, right? But they're taking into account the fact this is a one-time level, not an average, right?

44:43So, you know, I think a T-level in the 500 to 800 range, in my read of the literature, is reasonable. Especially for one of these people who are very insensitive to testosterone. If you have the keg repeats, if you have all these other mechanisms going on. So that's my read of the data. That's just an opinion. But that 1800, what he's saying is it's in a trial. So they allow for someone, it's 5 % will go above 1800. That's not allowing it to go to 1800. They have to titrate it down. So if you're trying a new drug out and just learning more about it, but they're not saying that's acceptable. That's like the hard stop.

45:21It's a hard stop. We don't really have a hard stop yet, right? But you know something? I see a lot of athletes, and they take testosterone for, you know, whatever, what were you calling it before? Performance enhancement.

45:35Dr. Gabrielle Lyon:Performance enhancement. I was wondering if you were going to say it. And I send them to the cardiologist at some point. I have not had a single cardiology problem identified in these guys. Not one. Is it a length of time then? I mean, it could be. They're younger guys, right? And I haven't done it yet, you know, at five years. But they don't stay on these performance-enhancing drugs for long term. I think the men who stay on testosterone long term are the older patient with classic symptoms of low testosterone. But the ones who are doing it, performance enhancement, I think it's fairly transient.

46:14But again, I have not seen anything. And I measure lipids and I measure hematocryl and I measure CMPs regularly on all these people.

46:22Dr. Gabrielle Lyon:It seems odd that an athlete would come in and think about performance enhancement. And again, we're not talking about super physiological levels, but then they go, oh, my sporting career is over. I'm going to go off of testosterone. It just seems a bit counterintuitive. And maybe it has to do with the FDA restrictions. So there was recently a removal of the black box warning with the Traverse trial. And you were involved in the Traverse trial. I'd love to hear a bit about that. Yeah. Can I just say one thing? And that is when these people are no longer doing whatever they wanted to do for which they wanted to hire.

47:04Testosterone, I will talk them down. I will not continue high dosing. What do you consider high? You know, over one cc.

47:13Dr. Gabrielle Lyon:Over a high, okay, so 200. 200? Yeah. A week, okay. Yeah, the Traverse Trial is interesting because it's like before 2010, numerous studies showing men with low testosterone levels much more likely to have a heart attack. Numerous studies showing that. Numerous studies before 2010, those below 300. Were more likely to have increased mortality, were likely to have a heart attack. Also, numerous studies showing that if you give testosterone, it may decrease the risk of a heart attack before 2010. 2010 to 2014, four studies come out suggesting that you may have an increased risk. Three of these studies are not randomized, no placebo, no control.

47:52They're retrospective database studies. 2015-2014, the FDA has a meeting and they decide that there may be an, it's inconclusive based on these four studies, whether testosterone increases the risk of cardiovascular events, and they strongly recommend a large study called the TRAVERSE trial. The largest randomized placebo-controlled trial, 5 ,246 men, took us six years to do it, very expensive trial. What did it show? No increased risk in heart attack in those men taking testosterone. And it was a gel, don't get me wrong, it was a gel versus placebo. But there were sub-studies, no increased risk in BPH, no increased risk in prostate cancer, A slight improvement in depression.

48:33There was also improvements in sexual activity as well. So big trial, a lot of money spent on it. And based on the results of the reverse trial, big day. It was February 28th, 2025. The FDA announced we're now going to remove the cardiovascular warning from the label. So it was 10 years exactly later where they decided to remove the warning. So it took us a while, but it's now off the label.

48:57Dr. Gabrielle Lyon:Was that one of the biggest moments in your career? Huge. I remember exactly where I was. And I saw the thing pop up on my feed. It was a big deal. Because, you know, we published the first paper in 2023 showing there was no cardiovascular events. And then it was silence for two years. And I thought, maybe, I hope they're going to, what if they don't do anything? What if they don't take it off? It was just silence. And then two years later, they announced, okay, yes, we will take off the cardiovascular warning. But I have to be the devil's advocate in that I'm not comfortable with the dosing on that study.

49:26Yes. So let's talk about that. because people look at the range of 350 to 750 and they say well 350 is sub-therapeutic if you got someone at 360 it may be low but what most people don't realize is this is the only study where those numbers were the troughs they weren't the peaks they were the troughs so if the t trial which came out in 2015 uh 2016 sorry those were actually uh peak levels so what so what was the average t level in the traverse study average increase in the t level was 147 nanogram per deciliter but this was at the trough so we didn't publish the peak level you have it we can look at it we still have the data yeah but those were the troughs so everyone looks at say kira 360 that's so terrible i say if it was a peak yeah i agree that's a trough yeah but there's not as many peaks and troughs with topicals because you do it every day and it's constant these were not injections

50:21Dr. Gabrielle Lyon:Do you prefer, as a provider, I mean, most providers, at least I can speak for myself, prefer injection. Is there a reason someone would use a gel or you used a gel? Was it just ease of access? Well, it was also the sponsor. So the sponsors were basically gel sponsors, and so we used their formulations. But I agree with Dr. Lipschel. I mean, gels and injections are different. So you have to be very careful in using the injection, the gel data, to be apples to apples for injection data. but if you talk about prostate cancer it's safe because the reality is we talk about a saturation point so again if you put someone above 250 i don't care pause on that the saturation point most people listening to this don't really understand that component the saturation point of um prostate or psa right yeah the prostate acts like a sponge it takes up all the testosterone that it wants and finally it's saturated then it doesn't care how much more you raise the testosterone in the blood it's not going to change the psa it's not going to change the prostate volume and so when you uh we think the saturation points around 250 in the anagram per deciliter roughly meaning if someone has because one of the biggest um restrictions for primary care is i don't want to give you testosterone because it's going to cause prostate cancer right right that's changing Don't you think?

51:41Even on the Traverse Trial. So the Traverse Trial actually showed 5 ,246 men, no increase in high-grade prostate cancer, regular prostate cancer, or BPH. Big study. Vandamized placebo. But remember, if you take someone whose testosterone is 150 and you put them on T, that PSA is going to go up. You better believe it. It's going to go up. Right? If his testosterone is 290 and you put them on T, PSA is really not going to go up. You're above the saturation point. Right? So if you're on an injectable or a gel, we've gotten beyond the saturation point on both. So I'm not really concerned when it comes to prostate cancer and BPH.

52:15Cardiovascular is a little bit different. An injectable can cause higher erythrocytosis, potentially higher hypertension. So there could be some parameters that are not apples to apples. I think the traversal gives you a good idea, but it's not exactly the same with an injectable.

52:29Dr. Gabrielle Lyon:And can we just say one more thing? So in nutritional sciences, when a study is funded by an organization, whether it's a beef company or the Dairy Council, there will be very good science. And instead of looking at the science, people will say, well, there's funding behind that. And I don't know if it's like that in the world of andrology and pharmaceuticals. Is it? Yes. It is. I mean, quite frankly, without the funding, we can't do the great science. And so I wanted to hear you guys. respond to that. That's the issue. This traverse trial would have never happened without the funding. Now, the way the funding works typically, it's an unrestricted grant to a group of scientists that do the study.

53:09But yes, the money comes from an industry to help support the trial. I don't remember in that study whether it was whether the brand was announced or incorporated. No, it wasn't. But AbbVie was the major sponsor and we had other sponsors as well. But again, all the money went to a central repository at the Cleveland Clinic and that study was done with nine investigators. And wasn't at that time all of the topicals generic? I don't remember because it's 2015. Well, they are now. They are now. So, I mean, you couldn't have profited because your brand was not out there being advertised.

53:50Dr. Gabrielle Lyon:But it's a big misunderstanding with the general population and even people that are very interested in science. And then the researchers, because there has to be money for funding. And ideally, it is given to and provided to excellent scientists and excellent physicians. And the data is the data. And that becomes really important. Is it unethical to not treat with testosterone? So from what I've read is that if someone has low testosterone, there's an increased risk in, for example, high-grade prostate cancer. Mm-hmm. So you think, I think the word unethical. To not treat. I don't know whether the word unethical is the right word.

54:35It's uneducated. A little too heavy. Well, I mean, yeah, but it's not ethics, you know, when you're treating patients. It's what's right, what's wrong, what's, you know, the currently acceptable way to treat, standard of care. I think right now most people would treat. Yeah. But I think we, knowing what the three of us know now, I would say, look, if it was a loved one, my brother had low T, and I'd say, look, I really want you on this, not just for your sex drive or libido, it's for your overall health, and I really want you on this. But how about if he has no symptoms? Well, I agree. So it depends on how low is low.

55:09It's clearly under 200. That's a really good point.

55:13Dr. Gabrielle Lyon:That's a really good point. That's why I worry about testosterone screening. People are all talking about testosterone screening. And if they start screening, when do you treat? Do you treat because the number's low-ish? Yeah. you know you'd have to be it has to be well thought out yeah i agree when you're going to treat i think if you're severely hypogonadal and i use under 200 yes i consider that severely happy then i worry and it usually it's pretty rare that someone under 200 is not symptomatic so let's be fair but the reality is i worry about what's going to happen to you exactly osteopenia osteoporosis what cardiovascular risk i worry about lipid profile so i was in that case say look i realize your levels are low and you may not be symptomatic but these are the things i'm worried about But it's pretty rare for someone to be below 200 and not sent to mouth.

55:59I know, but I just saw a professional baseball player comes in, T's are consistently under 200. Yeah. And he doesn't really have significant symptoms. Yeah. But, you know, I worry about him. I worry. First of all, he was very thin. Yeah. And I just don't think he had enough muscle mass. Practically speaking from a patient perspective, if you go to your provider and you have symptoms, your testosterone is low or borderline low, it is totally reasonable to seek a second opinion if that physician or care provider is uncomfortable writing for testosterone. I know, but how many patients know that? I mean, you know that.

56:37Yeah, but that's why we're saying these things, right? I mean, you have to take the initiative and be like, listen, this doesn't seem right to me. I'm going to get a second opinion or ask them, you know, I understand you're not comfortable writing for testosterone. Could you please refer me to someone who is? And there are plenty of people to do that, But you have to kind of take the bull by the horns and say, listen, I don't feel well. And this is the blood level. If you're not willing to give this to me, can you send it to someone who is more educated about it? Let me give you another, playing the devil's advocate, low T centers.

57:07I don't know what it's like where you live. Here, they're on every corner. And they will treat anybody. I've never seen anybody who was turned away by a low T center. So then you have to ask yourselves, I mean, is this right? Is this a license to hurt people? I mean, there has to be some judgment. I think they've gotten a lot better, though. But you're right. A lot better. But initially, but now, because now, you know, just you worry about screening, elevated prolactin. Did you check the prolactin? You're talking about really infertility. The education initially was a little worrisome, but I think it's gotten a lot better.

57:43But Larry, think about this also. They're doing a lot of now online tea. like like uh announced uh that they're selling kaisatrix you know so people can they don't have to go see a physician anymore they can do it on their app and it's asynchronous i put in information someone puts information my t shows up the next day uh at my house so you know that's another

58:04Dr. Gabrielle Lyon:venue that a lot of people are using who would you not treat with testosterone because you had mentioned that it raises blood pressure is it um clinically impactful so if someone has a low blood pressure or low blood pressure if they go from 110 to 120 still the normal range if they go to 120 to 130 because we know as age happens you know as a geriatrician we wanted to see blood pressure at 130 for peripheral um perfusion for cerebral perfusion yeah so who would we not treat I get very nervous about treating young men at a very early age if he's 21 years old for fertility and long-term having to be on the medication.

58:46So I would like to talk him out of it or see if I can use other medications, Clomid, HCG, something else, N-Clomid, just to kind of, you know, 21, those young patients, I'm resistant. So I think that's probably my biggest. I feel that testosterone, I personally believe, is cardioprotective. I think there's many benefits. So people say, oh, he has a lot of cardiovascular risk. Well, the Traverse trial was high-risk cardiovascular patients. Amazed, right? Yeah. And so, yeah, you had to have cardiovascular events or three of the eight cardiovascular risk factors. And I think it may be cardioprotective.

59:16So most clinicians say, I'm worried he has a bad heart. I don't want to put him on testosterone. I say, I believe the opposite. I'm worried if you don't put him on testosterone, it's going to make it worse. Well, there's a difference treating someone with heart disease versus preventive treatment. Yes. Yes. I mean, you're not going to be worried about preventive treatment. Now, I'm not going to prevent it, but she's saying, is there someone you're worried about? And someone say, I'm worried. Most people say, I'm worried about someone who has high-risk prostate cancer. I'm worried about someone who has increased cardiovascular risk factors.

59:43I say, I'm not. I believe the opposite. I think that testosterone also may be protective against prostate cancer. I think that, you know, the hypogonadal range is the danger zone. We call it the inverted U. Castrate may have some benefit. Ugonadal high levels of T have some protective benefit. I personally believe that. It's the middle zone, the hypergnatal range, which I believe increases chemical recurrence for prostate cancer, increases risk for high risk prostate cancer. So I really believe the same with cardiovascular disease. It's the inverted U. That's very important. And we're also now seeing drugs that stimulate the patient to make their own testosterone.

1:00:17Dr. Gabrielle Lyon:Like what? The clomiphene and its derivatives, like, you know, and clomiphene. So that, I think, is a good drug for younger guys. Easy. It's a pill. Use off-label. but still it helps raise natural testosterone, helps raise sperm counts. Yeah, I think it's a great drug. We all remember what a freshly cleaned room smells like. Straight chemicals, you know? As I think about it, I used to touch this stuff with my hands directly. And the more we learn, the more we understand the whole body burden of these compounds over time. We all have, frankly, enough to worry about cleaning products should not be one of those things.

1:00:55Dr. Gabrielle Lyon:And I remember when people thought I was crazy because I was really concerned about all of these cleaning products. I get it. The essential oils might not clean everything, but on the other hand, I'm not sure that we need these very aggressive cleaning products. And typical cleaning products use chemicals that leave synthetic fragrances and other endocrine disruptors as well. There's also harsh organic compounds on your countertop floor, your sheets that kids sleep on. These chemicals accumulate over time, forcing your body to carry that burden. And that's why in our house, we use Branch Basics.

1:01:34Dr. Gabrielle Lyon:Their premium starter kit uses one plant and mineral-based concentrate to replace every single toxic cleaner in your house. It has zero fragrance and zero endocrine-disrupting chemicals. It handles everything from our laundry to our kitchen counter without compromising our health. The only thing I wish it to different is if it would actually clean itself, but it doesn't. Branch Basics is available at Target, Amazon, and branchbasics.com. You can get 15 % off the premium starter kit with code Dr. Lion at branchbasics.com. That code is Dr. Lion for 15 % off. Can we touch on, if everyone is comfortable, just touch on peptides because that's kind of all the rage right now.

1:02:21Like what?

1:02:23Dr. Gabrielle Lyon:How are you touching on it? We are touching on it. I don't want to talk about necessarily the GLP ones, but the other peptides. I think they're going to become huge. Like CJC and Ipamorin. I think they're going to become because as far as we know, they don't have side effects that are worrisome. How does that make sense? Why? Well, they're protein hormones. They're acting, you know, they're attaching to the cell membrane. I don't know. So, I mean, why would they necessarily have bad side effects? I'm going somewhere with this. I'm just leading you into somewhere. Are you going to trap me? No, I was going to have you explain that, because this is my understanding, that testosterone is recognized by the body as such.

1:03:03Dr. Gabrielle Lyon:But these other peptides, these string of amino acids are not recognized, again, this is my understanding, by the body as that entity. Meaning it doesn't have downstream effects that would be negative. Did I explain that well? No. As far as I understand, they're naturally occurring substances. They're extracted from other fluids. CJC and epimoralin is a natural? I mean, I cannot tell you which ones. There's one that comes from the placenta. There's one that comes from gastric juice. The BPC is gastric juice extraction. I don't know all the other ones, but they are theoretically, Theoretically, they're called naturally occurring substances, and they have very specific action.

1:03:50It's not like you give somebody testosterone, it does many different things. Peptides are very specific. And I think the more specificity, the less chance you're going to have of side effects. And we're not seeing any yet, but I mean, it's way too early because the places that are making them, they're coming from compounding pharmacies, and not all compounding pharmacies are equal. So I think we have to be careful at this point in time. I agree with that. Prescribe it because we just don't know enough about their sourcing. But I think it's going to be something very big in the future. We use this word peptides very loosely.

1:04:26There's a lot of peptides. But the peptides most people are talking about are growth hormone peptides, or they're talking about BPC, which is a gastropin. That's what they're talking about. They're not talking about all the other peptides. GLP is a peptide. That's not what they're talking about. Incentives are peptides. Yeah, so when you say peptides, be specific. What are you talking about? We're talking about growth hormone peptides, gastric peptides. And these peptides, some of them are FDA approved. Some of them are not FDA approved. The ones that are FDA approved, for example, are sermolin, tesamolin.

1:04:55Dr. Gabrielle Lyon:Been around for a very long time. And if you have data, and if you look at the data, what do they really help with? The three things they help with are increasing muscle mass, decreasing fat deposition, particularly truncal fat, and actually can help with sleep, right? That's it. there's no benefit in sexual function. My libido went up when I took that CJC. No, there's no data. Now, it may have, but show me the data. But there are some that are theoretically oriented towards sexual function. Like bromelanotide, PT-141. Tell me about that. So bromelanotide is, well, it came out for women. Bylesi, it's for women, PT-141.

1:05:36But when people say peptides, they're not talking about bylesi. But you're right, there are sexual function. I do use PT. I do use it for men. Yeah, we do. It's off-label. It's very effective. But I think when people are doing peptides, they're not talking about Vileci. They're talking about, give me that CJC. Give me that BPC. Give me my epimoralin. And you have to realize that they're not FDA approved, and there could be some safety concerns. And if you look at the FDA website, they say that they're not intended for human use at this time. Fine. And so I just think that it's important to know that.

1:06:07It's from Orleans, FDA approved. Tessa Morland is FDA approved.

1:06:10Dr. Gabrielle Lyon:What are their, was it clinical indication, Tessimorlin for? HIV lipodystrophy. Yeah. And Sermorlin was for pediatrics for growth hormone deficiency. But if you look at the data on Tessimorlin, the studies are pretty good studies. Yeah. From when it was launched. And it's an injection. It's a daily injection. Yes. Tessimorlin. Yes. Is it cost prohibitive or covered by insurance? I think it's too expensive right now. I don't think it's expensive to make or source. So I think we're going to see prices come down on peptides. For a compounding pharmacy to make a peptide, it has to be under 40 amino acids.

1:06:48Tessamolone is 42 amino acids. So theoretically, it should not be compounded for human use. But you can buy commercially. If it's no insurance, it's about$7 ,000 a month. It's pretty expensive. The 40 amino acids is for classification as peptide versus a biologic. Yes. It doesn't mean that if it's a biologic, you can't make it or sell it. But there's stricter criteria for biologics than there are for peptides. In Europe, some of the peptides are sold as supplements. You don't even need a prescription. So I don't know what's going to happen here with peptides. I mean, there was a recent announcement that 14 were going to be approved for manufacturing under a new FDA ruling, but it's not yet actually done.

1:07:36So whether it will actually happen, I don't know. But Robert Kennedy did come out and say he was trying to get them approved.

1:07:44Dr. Gabrielle Lyon:And then the follow up with that, will there be more, do you expect more randomized control trials with these type of? If they get approved, it'll be easy. If you get approved, it'll be easy to get those trials up and running. Yeah, but the trials will be from people like you. They won't be from pharma. Yeah. Because apparently there's some reason why they can't copyright them. Or what's the word? What is the word when it's a drug? Patent. They can't patent it because it's a nationally occurring substance. And there's, so, you know, big pharma can't make money on it. And since studies are so expensive, who's going to pay for the studies?

1:08:22That's the big problem with peptides.

1:08:25Dr. Gabrielle Lyon:So this is a really interesting statement here. I'm just going to read it. It says, erections as medicine, the cardiovascular conversation. Did you make that up? No, I didn't. Which is why I'm making it because it's much better than anything that I could make that, quite frankly. It's a really important point. And that's what I think Dr. Kohler brought up this phrase I still use. It's called the check engine light on. Essentially means ED is not a disease. It's a symptom. It's a symptom of something bad going on, right? A healthy man should not have ED, right? ED could be because he has depression.

1:08:59That's a symptom of depression, depression of cardiovascular disease, a symptom of his prostate cancer, diabetes. It's a symptom of something going on. And your job is not just giving the virus and say goodbye. Find out what the problem is as opposed to just giving them the virus and say goodbye. In all honesty, I would bet the majority of men who show up and say, yeah, my erections are just not as good as they used to be. And you give them, you don't get a study on these men. Why not? Because it's cost prohibitive. Every man at a certain age is going to tell you his erection is not as good as it used to be.

1:09:33So if I talk about lifestyle drugs, I mean, then Viagra is becoming a lifestyle drug. Yeah. So, you know, and daily sales.

1:09:41Dr. Gabrielle Lyon:What do you mean lifestyle drug? Meaning there's, because in my mind, that would improve blood flow. So that would not necessarily be a lifestyle drug, but improvement. But the end point, what I'm talking about is what they're trying to get is a better erection. They're not, they don't have a terrible symptom. Well, yeah, it's a terrible, they can't get erections. But just to make it better, which is so often what the patient says. But we do investigate everybody who comes to me with problems with erections. We check a testosterone level, right? That's what we were talking about in the first hour here.

1:10:18We ask about a family history of a cardiac disease. If that's there, we do much further investigation. We typically check a cholesterol panel. We check a sugar. So these are all the kind of like other check engine lights that should be... I was thinking more of a duplex. Well, duplex ultrasound is certainly down the road. But if a guy comes to me with ED, even if it's... I'm just saying, he says, my erections are not as good as they used to be. It's not that he can't get an erection. And it's very subjective, I mean. Of course it is. However, it could very well be the sign of something going on that we should investigate.

1:10:56You know, there's powerful data. We know clearly that vascular ED, that is classically lack of blood flow to the penis, predicts heart attacks by three, five.

1:11:03Dr. Gabrielle Lyon:Say that again. So when you have blood flow problems to the penis that cause problems with erections, because sometimes it's psychogenic, right? It's not a true vascular problem. The penis predicts the first heart attack by three to five years. Okay? That is really profound. So we know that as a fact. Okay. But now there's even more data that shows that men, even with psychogenic ED, that is, the plumbing is fine. We do the Doppler that we just discussed to check the blood flow, and the blood flow is fine. But we know that men who aren't getting erections because they're anxious, because they're nervous, because they had a bad day, bad night, and now it keeps happening again.

1:11:40Those guys actually have more heart attacks, too. It's crazy data. But think about it. The average man thinks about sex 18 times a day. There's a study out of Ohio State in 2012. And if this person doubts they're going to get a good erection, that means they're going to get depressed and anxious 18 times a day. That is a setup for more anxiety, higher blood pressure when somebody cuts you off in practice, worse sleep. These are all a formula to set you up for other metabolic problems and disease. So I think erectile dysfunction should never be ignored and it always should be further investigated independent of the cause.

1:12:18So if you think about what he just said, so a man walks in with ED, he's 35 years old. So we know that if he comes in with ED today, 15 % chance he'll have, 15 % of those men have a heart attack or stroke within seven years. 15? 15 % within seven years. We know that he's three and a half times more likely to suffer from clinical depression, which you're not even touching on. And there's a 30 % chance he could have diabetes or prediabetes that you're missing. Now, let's say you do nothing and you just give him the Viagra and he did have cardiovascular disease or he did have diabetes and you picked it up five to 10 years later.

1:12:46That's five to 10 years of pounding on the vessels and which you could have picked up 10 years earlier. Now, if you think that young man, he has hypertension. You say, hey, I want you to go in and get screened for your blood pressure every year. You say, no way. I would have never gone at 32 years old to get my hypertension. But if he has ED, first thing tomorrow morning, he's at my door. And he's going to say, what's going on? So ED is a great way, a gateway for men's health to get them their blood pressure checked and to get their blood sugar checked. It is a gateway to bring men in. But I think it's a disservice when you have a particularly young man to say, here's your vodka.

1:13:22See you later. But that's what's happening in the world. That's what's happening. Because most of these patients are talking to their primary care. And they're saying my erections are not good. They give them Viagra. That's it. Right. We only see them when, I think the ones that we see are the ones that don't respond. So the primary care refers them. Or they don't get erections, which is a lot more severe than it's just not as strong as it used to be. But what an opportunity to actually screen and get baseline numbers in these patients. I mean, awesome. You see this guy, like when you're a young boy or girl, you see your pediatrician.

1:13:59What happens to girls? They get headed off to their OB-GYN doctor. What happens to boys? Nothing. Nothing. So they don't come to your office for 20 years. In the meantime, they have high lipids. They're pre-diabetic. Maybe they have a cardiovascular risk. And we're completely missing that. We talk about this. You know, I have this webcast. And we talk, Amy and I talk about the fact that no one is seeing the guys. I mean, the women have their gynecologists when they're going to start birth control or they start having periods and they go and they get checked. There's no place these guys are just floundering around until they're 30 easily because we see them as infertility patients, right?

1:14:38They've never seen anybody. And the culture continues. Like the phrase, I haven't seen my doctor in 20 years. I'm healthy as a horse. I mean, that's just lunacy. Who buys a Porsche and then never changes the oil, checks the air pressure, right? I mean, like, that's just crazy. The human buys this amazing machine. And screening, like, really helps to prevent heart attacks, you know, diabetes, et cetera, et cetera, et cetera. Yet there's this desert of men's health care that is completely existing. There's this phrase now, toxic masculinity, right? And these guys, you know, they say, man up, you know?

1:15:18I'm having headaches. Man up. The father tells this kid, there's nothing wrong with you. And this is built into the society as we know it right now, is that guys don't, they think it's bad to go to the doctors because they're admitting there's something wrong with them.

1:15:33Dr. Gabrielle Lyon:So when girls start menstruating, they go to OBGYN, is there an age that, so for example, the normal age for erections to become more frequent is what? 14? 14? Yeah. Yes. 14. Puberty. Puberty. Is there going to be an indication where, okay, you've hit 14, you're a boy, we're going to send you for even baseline testosterone or whatever? How about just to talk about sexually transmitted diseases? Preventing pregnancy. I mean, there's no health education in the general education system right now, like there used to be. So they don't talk about it. I mean, no one talks to these guys. It's tragic. I think it's terrible.

1:16:16Dr. Gabrielle Lyon:Will there be, I mean, is that anywhere in the guidelines, what you were talking about? Screening? Yeah. No, but we're trying. When we went to the FDA back in December, we talked about the fact that every man over the age of 40 was what we thought about. Every man over the age of 40 should have a testosterone level screen annually. This is the best predictor of a man's overall health. And when we thought about it more, I think the number maybe should be lower. Yeah, I mean, I want my levels when I'm at peak performance. Yeah. 25. Yeah. Just pick a number, but certainly earlier than age 40, because again, when you're 45 and things start to fall apart, you have a reference point.

1:16:54And it may be too late. Also, the things that caused your problems at 45 could have been addressed when you were 25. It should be an annual screen. Yeah, and everybody knows what their cholesterol level is, right, if they're going to the primary doctorate. Nobody knows what their testosterone level is. But young guys don't go to primary care unless they're sick. Well, that's the problem. No, I know. That's the problem. But then again, you have to think about primary care. Primary cares are just inundated with patients. It's very difficult in Houston right now to get a primary care appointment.

1:17:24And they have 10 minutes per patient or whatever. It's a very short period of time. There's so many things to discuss. Yeah. It's such an important point you just mentioned, right? So the reality is it's like 18 minutes. My wife's primary care. She says, look, I got to go through diabetes, hypertension, hyperlipidemia, OSA. How am I going to get to ED and testosterone? You start with it early.

1:17:44Dr. Gabrielle Lyon:Yeah, you could start with it early. But she's like, well, then what if I can't get to diabetes? Right? Like, this is what I got. I got to get everything in. And I said to her, well, it's an important predictor. They could be suffering from other things. And she said, look, where did I get the training? I didn't get the training. And he put out an unbelievable paper several years ago. So I did only 50 % of medicine. What is it called? Well, LinkedIn. It was a journal. It was a couple of years ago where you and the Mayo Clinic put out an article showing that if you look at education, I think Dr.

1:18:12Hilo is the first author, showing that the only 50 % of medical students and residents got formal training. Fifteen or? Fifty. Fifty percent got formal training on sexual medicine, like how to, you know, sexual medicine and how to approach ED. Of those 50 % that got training, 50 % said their training was lousy. So how do you feel comfortable coming out talking about someone's erections when you got no training?

1:18:38Dr. Gabrielle Lyon:I mean, that's a really good point. And then to your point on primary care, before we even get to diabetes, hypertension, cardiovascular disease, perhaps when they're 18 or 15, I mean, maybe 15 is a little too young to get a baseline cholesterol and baseline testosterone level. I think it's really important. and we start early what about birth control so vasectomies how many you've performed over 2000 vasectomies yeah you're doing it in your living room how many I have no idea I mean when I was in the army I had to do five every Friday for two years I mean you know it's just he's done a tremendous many fellows over 130 fellows how to do them what about reversals he's done a tremendous amount of reversals 130 30 patients.

1:19:28I mean, a number of 30 fellows have been trained. A lot of them go out and they don't do it because they don't have the patient population. But we do a lot of reverse. I had three people come in yesterday for office hours to talk about reversals.

1:19:43Dr. Gabrielle Lyon:Is that effective? And is it a common procedure in general? It's not a common procedure because not that many people are trained. I mean, if we trained 120, 130, that's, you know, that's who we trained. I mean, you know, there aren't more. And people retire. And I think what's happening, though, I think there's been more, with more divorce, people are forced to change their mind because their new spouse is often younger. The woman's often younger. And she wants to have a family. He has two kids. and he will have the reversal so she can have a child. And I think that's becoming increasingly common with the high divorce rate.

1:20:26Is there something that men and women should know prior to undergoing vasectomies?

1:20:32Dr. Gabrielle Lyon:I don't think it's really discussed that much. I just think the message is tell them it's permanent. So stop coming to you for a reversal? No, I would love doing reversals. But I mean, the point is people should not be told this is a temporary procedure. They have to realize that it's hard to get it reversed because there's not that many people doing it. But don't you think you want to educate people when they come in for a vasectomy that it's not temporary? Yeah, two points also. His point is also you only want to go to the center of excellence. People who have high volume that know how to do this because sometimes you can do something more complicated like an epididymal vasostomy, which is more complicated.

1:21:09Why? It's a more complicated type of the procedure. And you don't want to go to someone who's doing one a year or two a year. You really want to go to someone at a high volume. And more importantly, if you're going to give one message out about vasectomy reversals, the sooner you do it, the better. If you come to me in three years or five years, the outcome is much better than you come to me in 20 years. Right. So that's a really important point. It's time dependent on outcomes. But people don't always know when they're going to get divorced. You know, so, you know, I think we have to just do it when they need it done.

1:21:39But we counsel them that the results are going to be better if it's been under 10 years.

1:21:45Dr. Gabrielle Lyon:Okay. You know, I was misguided. I thought it was a very common procedure. What? A reversal? Yeah. I thought it was very common. I think 6 % of all men who get vasectomy inquire about vasectomy reversal. And that's the number I remember. Okay. So it's not quite frequent at all. And when it comes to male infertility, I'm curious as if you all agree on the one cause. If you could pick one. I know you hate the one. I mean, he was the one who invented varicoceles because of the one who caused infertility as vapor. So it's probably the most common problem. And it's the most, and it's the, and it's the.

1:22:24What is a varicocel? It's enlarged veins around the scrotum, around the testicle.

1:22:28Dr. Gabrielle Lyon:Could someone see that or it's under ultrasound? So you can see it in some cases. We grade them as, you know, small, medium, and large or grade one, two, three. And the grade three, you can literally see. I'm sure you've seen patients with these large veins. I have, but I'm asking for that. For those guys out there. Is there anything? So I think that you have to remember that 18 % of all men, 18, have varicose veins of the testicle. But not the legs. It's the testicles. It's right around the testicle. And it overheats the testicle. And heat is bad for sperm production. Wait, because I don't actually know this.

1:23:07Dr. Gabrielle Lyon:So the varicocele causes an increase in heat production? Yes. Because it's retrograde flow and it sits around the testicles. So you don't have the blood leaving. It's just pooling there. Sounds painful. No, it can be. But I mean, that's not the most common thing we see. Okay. It's like a factory where, you know, the workers are making sperm and somebody like takes out the air conditioning and turns the temperature up 30 degrees. The productivity of that factory is definitely going to go down. Oh, that's cute. That's a great analogy. Yeah, picture these little men in there. So when he starts to smile, so he's very stoic, and then when he starts to smile, you know he's coming in with an analogy or something.

1:23:49Right, right. But anyway, so when a man comes to see you, the fact that he has a varicocele is not necessarily. Known to him. Well, it's also, yes, but it's also not necessarily the cause of his low sperm production. Because it could be true, true, unrelated. He can have a varicosele since 18 % of all men do. And he can have another reason for his infertility. But I think in general, most of these men will end up having their varicosele corrected because it is such a common problem with testicular failure.

1:24:24Dr. Gabrielle Lyon:Is it one of the causes of low testosterone and or erectile dysfunction in younger men? Low testosterone, yes. Yes. Yeah, low testosterone, not erectile dysfunction. Maybe indirectly, if testosterone goes down, but low testosterone, yes. The problem is that if you fix the varicoceles, you see about an 85 to 100 nanogram per deciliter increase, which some would argue is not clinically significant. That's not that much. Yeah, so if I started at 250 and you get me to 350, so it's not currently considered an indication. Like, you wouldn't fix someone's varicoceles to help raise their T to a normal level.

1:24:57People do. You do. I mean, let's be honest. They do, but I don't think it's clinically significant. But you'll know if a man checks his own testicles and one's really small and it used to be the same size as the other side. So there's something called testicular hypotrophy. The testicle gets smaller from that factory exhaustion thing, right? From those little men taking you in and out of the house. They're riding and the factory's actually getting smaller. I think you mentioned something very important. That was having men check their testicles. And they don't. And they should. But again, there's no education to young guys that, you know, between 25 and 35 peak years for testicular cancer.

1:25:38So, you know, I tell my patients, you know, once a month in the shower when everything's nice and rough, just make sure there's no lumps or bumps on the testicles. And if there is, come on in and we'll check it. It's really important. But they don't.

1:25:50Dr. Gabrielle Lyon:What is testicular cancer? What is the mean age? Between 25 and 35. It has a bimodal distribution, so in either young men below age 35 and then older men, like about 50 or 55. And then, you know, when a guy's feeling his own testicle, he has to know what's going on there. So there's this olive-like structure, and then there's this thing on the back. It's like a backpack. That's epididymis. It's where the sperm learned to swim, swimming school. But it has to be bigger than an olive. It's a very grande olive. I would add a big stone. It's a huge olive. So 20 cc's or so. Yeah. And then what you're supposed to do is gently roll the testicle between your fingers and learn what normal is.

1:26:33So the epididymis is back there.

1:26:34Dr. Gabrielle Lyon:What age should they start testicular exams? Twenties. 18 to 35. I would say young. 18 to 35. That's a big range. Yeah. 18 is where you start. What you're looking for is if you're walking down the street and you picked up a stone like a pebble. Right? It's jagged. It's hard. If that's living inside her testicle, you feel like, wait, there's an irregular border. It feels very hard there. That's cancer to prove otherwise. That's cancer to prove otherwise. This is very important. And we've all experienced seeing these guys who come in, nice guys, married, unmarried, and they've just, their whole testicles replaced by cancer.

1:27:14Because they just don't. I know, but they don't know. Or they, you know, but refuse to face the fact that something bad is. Early diagnosis of testicles? It was great. Always careful. Life-saving. I mean, 99%. You ask them to make a fist, and you tell them between the knuckles is exactly what a normal testicle feels like. You just press down. It's a normal testicle. The knuckle is identical to what a cancer feels like, right? You want to feel between. You don't want to feel the knuckle. That's a very simple way to tell someone what they're feeling in their testicle.

1:27:44Dr. Gabrielle Lyon:What is the lifelong prognosis if it goes undetected or untreated? It's high mortality because it can get metastatic very quickly. There are a lot of good drugs right now for the man with testes cancer, but you don't want to let it get to that point because the drugs as a group will cause infertility. And so you don't want to let it get so far that you need drugs. And you also need to know that you can bank your sperm easily and not expensively if you have to have treatment for testis cancer. And can someone still maintain fertility? Because it's not always, is it usually both? I don't want to say bilateral.

1:28:28Dr. Gabrielle Lyon:Is that the right term? Yeah, it can be. It can be. And one of our partners has a case coming up that's bilateral. But in those cases, you have to make a decision. You know, it's saving their lives. We do something called oncotesty. And oncotesty means when you remove the testicle, you work with the pathologist. They line out where the cancer is. they show you where the good tissue is. We take the good tissue out at that time and we go bank it and save it so they can do IVF later. And then we give the cancer to the pathologist, but it takes a team to get that done. There's a whole subspecialty of medicine called oncofertility, preserving fertility with cancer for both men and women.

1:29:05Wow. So often when patients start, when young patients are told they have cancer, first of all, survivability with people, young people with cancer is actually quite good. But you get blinders on, you forget about these things like fertility because you're just like focused on you need to get this treatment, you need to get this treatment. But there is always time to talk to an expert about this and say either bank sperm or do ovarian cryopreservation in women or potentially move around where the ovary is if they're going to shift it out of the radiation field. There's always time. It should be considered because if you don't treat it before the cancer treatment starts, it's too late.

1:29:42But Anderson is trying. They do have two women over there full time. Yeah. But it's mainly addressing the women. Yeah. But they send us their patients. They do. They do.

1:29:51Dr. Gabrielle Lyon:And I have one last question regarding this before we wrap up. With smoking cardiovascular disease or lung cancer, we know that there's a relationship. Do we know what the action item or the exposure would be for testicular cancer? Are there known exposures? There's none. Well, it's cryptorchidism, so if the testicle doesn't descend, that's a risk factor, right? But I can't give you a percentage on the smoking or if there's a correlation with the smoking and the testis. No, I don't think. There's no data on that. But I can tell you this. For infertility, men who are having trouble with sperm production, a huge area is environmental toxins.

1:30:35There's some excellent review articles just out recently talking about all the things in the environment. that theoretically can affect sperm production because you're making millions of sperm a day. And with rapidly turning over cells, they're going to be exposed to whatever is in the environment that can come in and halt that cell division. So, you know, a lot of the coal, people who live around coal mining areas, they are breathing in things that can affect their sperm production. uh talk uh think the soil fumigants um pesticides and alcohol yeah what what is that it's excellent once you got this terrible look no no i don't know i was actually thinking about the veterans

1:31:23Dr. Gabrielle Lyon:and i was thinking about the veteran community and infertility but taking it one step further i was thinking about testicular cancer and the veteran population i was you know that's a very interesting point because we're just starting to look at the burn pit yes the patients i mean exposures in terms of fertility because it's you know all the other things have been identified many things have been identified that are health issues but it's just your husband is starting to listen this is what we talk about and now you know people are like starting to look at this and the better population yeah and i think it's going to be a very important thing i i would agree with you gentlemen thank you so much for coming on if you would like to leave the listener or the viewer with one it could be a tip it could be a statement for their physician or as physicians the floor is yours i'd say low testosterone and ed are a marker of poor health and just don't ignore it if you have low t or ed look at what the cause is because it could be potentially life-saving and you have a wonderful ted talk on sex man so we'll link it at the bottom thank you I was there from a popcorn.

1:32:30One thing, and that is we've shown that poor sperm production, infertility, is a metric of a man's health. So men who have low sperm production, increased risk of all-cause cancer, earlier mortality, greater incidence of comorbidities. And, you know, that can't be overlooked as simply something for reproduction. It's a metric of health. It's very well said. You need to be proactive. You need to take agency for your own help. Don't be anxious, depressed, sitting on the couch. You are the CEO of your own body, right? Take care of it.

1:33:10Dr. Gabrielle Lyon:Well said. Thank you so much. Thank you. Thank you.

From the publisher

Most men think erectile dysfunction is a bedroom problem and low testosterone is just a fact of getting older. This roundtable makes the case that both are early warning lights for your heart, your metabolism, and your long-term health and that ignoring them can cost you a decade.

In this episode, Dr. Gabrielle Lyon sits down with urologists and men's health specialists Dr. Mohit Khera, Dr. Larry Lipshultz, and Dr. Tobias Köhler to discuss:

  • Why a 35-year-old with ED carries a ~15% risk of heart attack or stroke within 7 years, ~3.5x the risk of depression, and ~30% odds of diabetes or prediabetes and why a prescription alone misses all of it
  • Why "age-related" testosterone decline is largely a misnomer: a healthy man shouldn't drop significantly with age, so falling T usually signals something reversible underneath
  • How testosterone became the single best blood marker of a man's overall health, and the case for annual screening that almost no man gets
  • What the TRAVERSE trial changed when the FDA removed testosterone's cardiovascular warning in 2025, debunking the prostate-cancer and heart-attack fears
  • The 2-minute monthly self-exam every man should do to catch testicular cancer early, when it's ~99% curable

If you've been told your symptoms are "just aging" or you love a man who refuses to see a doctor. This conversation shows you how to read the signals your body gives long before a crisis hits.

Thank you to our sponsors:


Explore More from Dr. Gabrielle Lyon


Find Dr. Larry Lipshultz at:


Find Dr. Tobias Kohler


Find Dr. Mohit Khera


Connect with Dr. Gabrielle Lyon:


Chapters

00:00 - Introduction

01:30 - What doctors got wrong about testosterone

05:05 - The prostate cancer myth, debunked

07:12 - The best marker of a man's health

11:51 - Is age-related decline actually real?

14:15 - How obesity crushes testosterone

18:11 - Testosterone and reversing diabetes

20:06 - GLP-1 versus testosterone

25:20 - What "low testosterone" really means

29:05 - Dosing, CAG repeats, and microdosing

42:34 - The TRAVERSE trial and FDA reversal

47:10 - The prostate saturation point

56:49 - Peptides, explained

01:03:00 - Why ED is a check engine light

01:08:26 - The desert of men's health care

01:11:06 - The case for annual screening

01:16:45 - Varicoceles and male fertility

01:20:03 - How to check for testicular cancer

01:26:44 - Final advice for men

If you found this episode valuable, share it with someone who would benefit from it.

Disclaimers: This episode includes paid sponsorships.

The Dr. Gabrielle Lyon Podcast and YouTube are for general information purposes only and do not constitute the practice of medicine, nursing, or other professional health care services, including the giving of medical advice, and no doctor/patient relationship is formed. The use of information on this podcast, YouTube, or materials linked from this podcast or YouTube is at the user's own risk. The content of this podcast is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Users should not disregard or delay in obtaining medical advice for any medical condition they may have and should seek the assistance of their health care professional for any such conditions.

More from The Dr. Gabrielle Lyon Show

All 81 episodes
What Your ED Is Really Telling You About Your Heart, Blood Sugar & Hormones - Urology RoundtableThe Dr. Gabrielle Lyon Show · 1 h 33 min
Listen in VO