Brain Fog, Weight Gain, Poor Sleep: Dr. Stacy Sims on Why Women Are Given SSRIs Instead of Answers

23 Mar 2026 · 7 min · 2 chapters

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In short

Podcast Episode Summary: Brain Fog, Weight Gain, Poor Sleep: Dr. Stacy Sims on Why Women Are Given SSRIs Instead of Answers

Overview In this episode of Live Well Be Well hosted by Sarah Ann Macklin, Dr. Stacy Sims discusses the often-misdiagnosed symptoms women face during perimenopause, particularly in their mid-30s to early 40s. The conversation highlights the biological underpinnings of common issues such as weight gain, poor sleep, and brain fog, emphasizing the need for a deeper understanding rather than simply prescribing antidepressants.

Key Points

Understanding Perimenopause

  • Age of Onset: Perimenopause can begin as early as 32 to 35 years old, contrary to common belief that it starts later.
  • Symptoms: Women may experience a combination of symptoms:
  • Weight gain
  • Poor sleep
  • Loss of muscle tone
  • Feelings of tiredness yet being "wired"

Misdiagnosis in the Medical System

  • Common Misconceptions: Many physicians attribute these symptoms to stress, anxiety, or lifestyle factors, often prescribing SSRIs (Selective Serotonin Reuptake Inhibitors) as a solution.
  • Misdiagnosis Impact: This approach overlooks the hormonal shifts that can cause similar symptoms and can lead to ineffective treatments.

Biological Basis of Symptoms

  • Anovulatory Cycles: The conversation discusses increasing instances of anovulatory cycles during perimenopause, which can lead to hormonal imbalances.
  • Gut Health: There are significant changes in gut microbiome diversity during perimenopause, which may contribute to visceral fat gain and other symptoms.
  • Symptoms of gut dysbiosis include:
  • Bloating
  • Changes in bowel habits (e.g., diarrhea, constipation)
  • Low ferritin levels without anemia

Brain Fog and Hormonal Changes

  • Brain Function: Dr. Sims explains that brain fog is linked to the brain's estrogen receptors becoming overstimulated due to fluctuating hormone levels.
  • Symptoms of Brain Fog: This condition can make cognitive functions challenging, akin to experiencing jet lag.

Social Expectations and Terminology

  • Cultural Shock: Terms like "geriatric mom" are used when women have children later in life, which can carry a stigma and additional pressure.
  • Postpartum Issues: The overlap between postpartum depression and perimenopause symptoms is highlighted, emphasizing the need for more nuanced discussions around women’s health.

Closing Thoughts

  • Dr. Sims stresses the importance of women being aware of these biological changes and recognizing that many of their symptoms may be related to perimenopause rather than just stress or lifestyle factors.
  • The episode encourages listeners to seek more informed support regarding their symptoms rather than accepting generalized treatment plans.

Additional Resources

  • Full episode available on [Apple Podcasts](https://podcasts.apple.com/gb/podcast/dr-stacy-sims-exposes-the-myths-hurting-womens-health/id1508380100?i=1000677581357).
  • Watch the full episode on [YouTube](https://youtu.be/hsaGZXiEbNs).
  • Subscribe to Sarah’s Compassionate Cure newsletter for actionable health insights: [Join here](https://sarahmacklin.substack.com/).

Social Media Links

  • Instagram: [@sarahannmacklin](https://www.instagram.com/sarahannmacklin)
  • Twitter: [@SarahAnnMacklin](https://twitter.com/SarahAnnMacklin)
  • TikTok: [@sarahannnutrition](https://www.tiktok.com/@sarahannnutrition)

This episode serves as a critical reminder of the unique health challenges women face during perimenopause and the importance of advocating for appropriate medical attention.

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

Chapters

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Understanding Perimenopause Symptoms

0:12 to 3:24

Exploration of perimenopause symptoms and misconceptions surrounding them.

“sometimes one small moment is enough to reconnect to living well and being well.”

The Impact of Hormonal Changes

3:24 to 6:08

Discussion on how hormonal changes during perimenopause affect women's health.

“So if we start to make women aware of what's happening, right, we know definitively that but in your mid 40s, you are perimenopausal.”
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Transcript

Automatic transcript. May contain errors.

0:01This is a Be Well Moment, the most replayed moments from my latest conversation. It's a glimpse into the wider episode, which you can find linked in the show notes below. Because sometimes one small moment is enough to reconnect to living well and being well.

0:22I know it changes and it differs, but what age roughly does perimenopause start? anywhere from 32 to 35. See, that blows my mind. And people don't realize it, right? Yeah. People don't realize it. Okay. And one of the things that I say all the time is like one of the major, I guess, representatives is a woman who's between the ages of 35 and 40 goes to the doctors like, I'm having all these problems, like I'm putting weight on or not sleeping well. I'm losing muscle. I feel like I'm waking up squishy overnight. I can't relax. I'm tired but wired. And physicians who are not that well-versed in perimenopause will say, well, it's because you are a career driven woman.

1:06You might have kids. You might have older parents. You might have a partner who's also just as busy and it's stressed. So here's a serotonin reuptake inhibitor to help. Good old SSRI. Right, right. And this is not the answer. Because when we start looking at the actual symptomology of perimenopause, you might not start having overt symptoms until you're in your mid-40s, but it actually starts seven years before that. See, I didn't realize that I am obviously perimenopausal then. This is where - I'm in that bracket. Yeah. 32 to 35. And so when we're looking at anovulatory cycles, this is where we start to see more and more anovulatory cycles that are occurring.

1:49And this is what's driving the perimenopause. Wow. So I think when people hear that, they then, I naturally think about, I guess, kids. Yeah. Right? And, you know, your fertility start dropping. Yeah. And so that's quite aligned with perimenopause. Yeah. Okay. And it's not something for people to freak out. we see this again from textbook and medical text but that doesn't necessarily mean that you are perimenopausal okay right so it's the average age but i guess that maybe i'm not aware of it and that's why we're talking about it today maybe i'll leave this and think i am yeah maybe maybe not but i mean like i was i was um classified as a geriatric mom because i had my daughter when i was 38 why do they use these terminologies by the way um because i was older than 32 when i was pregnant.

2:35It's wild. I know. Geriatric. Yeah. It was a geriatric mom. But yeah, I didn't know IVF or anything. It was natural. Not that it was easy to get pregnant, but it was very doable. But then afterwards, it's like I had a really bad postpartum depression, but was it postpartum depression on its own or was it perimenopause that was coming into play? These are things that aren't talked about, right? So if we unpack it and look at what are all the symptomology of perimenopause with mood disorder, changes in body composition, poor sleep, you know, changes in blood glucose control, all of these things and the severe depression and anger and rage and all of those, it could be postpartum depression or it could be perimenopause or it could be both.

3:24So if we start to make women aware of what's happening, right, we know definitively that but in your mid 40s, you are perimenopausal. Okay. So some of the overt signs and symptoms, because we can't do blood tests, we don't know, right? There are no clinical tests. It's all subjective. So we look at mood, we look at body composition, we look at gut health, if significant changes in gut health, because we see - So more bowel transitions, more frequency going to the bathroom, or diarrhea, or constipation. All of those things. Okay, flatulence, bloating, all of these things. If you're having more issues with iron as well, so you're starting to have more low ferritin, maybe you're…

4:09Iron deficient. Yep, but not quite anemic. Not anemic. Yes. And we start seeing there's a decrease in the diversity of the gut microbiome, which predisposes women to putting on our visceral fat. because when we're looking at how our sex hormones are metabolized, we have that second pass where it goes through and is bound by sex hormone binding globulin, gets shot into the intestines through bile, and then are unpacked by the gut microbiome and then shot back out. We have more and more anovulatory cycles. We lose those little bugs that are unbinding from sex hormone binding globulin, reduces the diversity, So we start to see more overt symptoms of a low diversity of gut microbiome.

4:58Right. And that could be the only thing that you have is perimenopause. And you're like, why do I have such gut disbiome issues here? And it's perimenopause. So if we're looking at the symptomology of it, most people think, oh, it's just hot flashes. I'm just - That's the number one thing that's spoken about. But isn't it one of the least? it's the most overtly seen and felt but it is probably the least common we see most of the parasympathetic changes that happen where women are just walking around tired but wired and brain fog and they're like what is going on that's the thing yeah brain fog right it's so hard to explain yeah but sometimes i can't pronounce my words yeah yeah yeah it's like jet lag it's yeah which we're probably both experiencing right now where you're walking around and you feel like you're part of your life and you're part of everything but you're just a little bit removed it's i think it's the claritine ad or the claritine ad where they have the head that's separated from the body like allergies that's brain fog that's brain fog yeah yeah i experienced that yeah so that's part of the misstep in our estrogen progesterone receptors in the brain where I think it is Lisa Moscone showed images where there's a huge light up of all our estrogen receptors in perimenopause but it's not because we have all this estrogen that's being released and we're estrogen dominant but it's because the brain is trying to soak up as much estrogen as possible because there's less of it being produced so when we're having this overstimulation of estrogen receptors then we start to have a misstep and people like well that's part of brain fog.

6:45So it's a whole systems, like all of our systems are affected. Thank you for listening to this Be Well Moment. If it resonated, the full conversation is linked in the show notes. And I hope it gave you a small pause to take a moment for you and to reconnect to living well and being well. If you loved it, please do leave a review, follow the show or share this maybe with someone you love.

7:13Thank you.

From the publisher

You're in your mid-30s, gaining weight, losing sleep, and foggy in a way no amount of coffee fixes — and your doctor handed you an antidepressant. What if it wasn't stress, anxiety, or lack of discipline? What if it was perimenopause, starting years earlier than anyone told you? This clip breaks down the real biology behind "tired but wired," gut microbiome changes, and why brain fog in women is often a hormonal signal the medical system keeps missing — and keeps misdiagnosing.

Dr. Stacy Sims


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This episode is sponsored by: NOWATCH: Health tracking reimaginedKnow your body, trust yourself.15% off with code LWBW15 at nowatch.com

Mojo: the app for expert-led courses in better sex.Learn from world-class sex therapists and relationship experts with courses tailored to your needs.15% off with code LiveWell15 at mymojo.com/livewellbewell

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