Longevity Optimization with Kayla Barnes-Lentz

Most longevity conversations focus on the brain, heart, muscle, and metabolism. Far less attention goes to the thymus, an immune organ that starts shrinking almost as soon as puberty ends, and new research suggests it may be quietly linked to fertility, hormones, and even how millions of women taking birth control are aging on the inside.
I sit down with Dr. Abud Bakri, a board-certified internal medicine physician and hospitalist who founded Systems, a performance and longevity practice built around treating the body system by system rather than symptom by symptom.
We start with the foundations that determine whether any advanced intervention can actually work: light exposure, circadian timing, mitochondrial health, metabolic function, and the parts of modern life working against all of it.
Then we get into the thymus itself: why it shrinks after puberty, what that has to do with an unexpected finding in ovarian development, and a harder question Dr. Bakri raises about whether birth control may be accelerating that shrinkage in ways no one is currently studying.
We close on peptides: why Dr. Bakri treats them like drugs rather than supplements, what separates receptor-based peptides from the ones we understand far less, what we actually know about BPC-157, thymosin alpha-1, SS-31, and GHK-Cu, and how a peptide protocol could eventually be timed to a woman's cycle instead of applied the same way to everyone.
Join the most comprehensive *female-specific community for health and longevity optimization.* After over a decade dedicated to human performance and women’s health, I created this space to share everything you need to know to optimize health and lifespan. Inside, you’ll get access to exclusive protocols, live Q&As, the latest female longevity science, and a private, supportive community of like-minded women.
https://kayla-barnes-lentz.circle.so/female-longevity-community
Optimize your sleep with the Eight Sleep Pod. 
Get up to $350 off at https://www.eightsleep.com/Kayla with code “KAYLA”

Connect with Kayla:

Instagram: https://www.instagram.com/kaylabarnes/
TikTok: https://www.tiktok.com/@femalelongevity
Twitter:https://x.com/femalelongevity
Website:https://www.kaylabarnes.com/
Spotify:https://open.spotify.com/show/4OLWWn22RGB0argbRPvAaQ?si=8e91b3c9e0ce4054
Apple:https://podcasts.apple.com/us/podcast/longevity-optimization-with-kayla-barnes-lentz/id1591130227
Follow Her Female Protocol: https://www.protocol.kaylabarnes.com
Connect with Dr Abud:
Instagram: https://www.instagram.com/abud_bakri/
Website: https://abudbakri.com/ X: https://x.com/AbudBakri

We talk about aging like it happens to a whole person at once. It doesn't. It happens organ by organ, at different speeds, and most people never find out which part of them is running ahead until something breaks.
Dr. Will Cole has spent sixteen years running one of the first functional medicine telehealth centers in the world, and he came to this conversation with a case that is both clinical and personal. In 2023 his father lost consciousness at the wheel and died in the crash. The autopsy pointed to cardiometabolic changes, and his heart cells had been aging faster than the rest of him. That same year, Stanford researchers found that one in five adults over fifty has at least one organ aging faster than the others, and that when it's the heart, the risk of a cardiac event more than triples.
His new book with Dr. Josh Axe, Heal Your Cells, makes an argument that reframes most of what gets called normal aging. Exhaustion, brain fog, the weight that will not move, the hormone shifts nobody can explain. These are not the calendar. They are cells that have stopped reading their own instructions clearly, and that is a state you can change.
We get into what actually makes a cell feel unsafe, why your gut lining is one cell thick and therefore the first thing to break, and the point almost nobody makes about elimination diets: the reintroduction matters as much as the elimination, and a protocol you never came off of is a cast you left on until the muscle atrophied.
We also get into light. Not just morning sun, but the darkness half, which matters more for women than most people realize. Melatonin is not only a sleep hormone, it's one of the more important antioxidants for ovarian aging, and light levels most people would call almost nothing can cut its production substantially.
Track your sleep, recovery, strain, and HRV with WHOOP. 
Get one month free at https://join.whoop.com/kaylabarnes
Optimize your sleep with the Eight Sleep Pod. 
Get up to $350 off at https://www.eightsleep.com/Kayla with code “KAYLA”
Join the most comprehensive *female-specific community for health and longevity optimization.* After over a decade dedicated to human performance and women’s health, I created this space to share everything you need to know to optimize health and lifespan. Inside, you’ll get access to exclusive protocols, live Q&As, the latest female longevity science, and a private, supportive community of like-minded women.
https://kayla-barnes-lentz.circle.so/female-longevity-community

Connect with Kayla:
Instagram: https://www.instagram.com/kaylabarnes/
TikTok: https://www.tiktok.com/@femalelongevity
Twitter:https://x.com/femalelongevity
Website:https://www.kaylabarnes.com/
Spotify:https://open.spotify.com/show/4OLWWn22RGB0argbRPvAaQ?si=8e91b3c9e0ce4054
Apple:https://podcasts.apple.com/us/podcast/longevity-optimization-with-kayla-barnes-lentz/id1591130227
Follow Her Female Protocol: https://www.protocol.kaylabarnes.com
Connect with Dr. Will:Website: http://drwillcole.com/
Book: https://drwillcole.com/books-home-page/
Instagram: https://www.instagram.com/drwillcole
LinkedIn: https://www.linkedin.com/in/drwillcole/
YouTube: https://www.youtube.com/user/DrWillCole
#cellularhealth #longevity #femalelongevity #guthealth #healthspan #leakygut
#womenshealth #functionalmedicine #circadianhealth #autophagy #mitochondria #healthoptimization

Most women who deal with unexplained allergies, stubborn inflammation, heavy periods or a PMOS (formerly PCOS) diagnosis are never told to look at the same underlying cause: an immune cell most doctors were never taught to test for.
Dr. Tania Dempsey, MD, trained in internal medicine at Johns Hopkins before leaving conventional practice to focus on mast cell activation syndrome, a condition she believes explains far more chronic illness in women than most doctors realize. She's the founder of The AIM Center for Personalized Medicine and helped found the International Society for Mast Cell Activation Syndromes, where she now serves as treasurer.
This isn't some rare, fringe diagnosis. Dr. Dempsey estimates it may affect as many as one in five people, and in women it hides behind a long list of other labels, PMOS, endometriosis, hypermobility, unexplained heavy periods, that rarely get connected back to the same root.
Optimize your sleep with the Eight Sleep Pod.
Get up to $350 off at https://www.eightsleep.com/Kayla with code “KAYLA”.
Join the most comprehensive *female-specific community for health and longevity optimization.* After over a decade dedicated to human performance and women’s health, I created this space to share everything you need to know to optimize health and lifespan. Inside, you’ll get access to exclusive protocols, live Q&As, the latest female longevity science, and a private, supportive community of like-minded women.
https://kayla-barnes-lentz.circle.so/female-longevity-community
This conversation explores
The overreaction inside your immune system that never fully resets

Why PMOS and mast cell activation almost always show up together

The natural blood thinner behind unusually heavy periods

Where treatment actually starts, from vitamin D to advanced IV therapy

Connect with Kayla:
Instagram: https://www.instagram.com/kaylabarnes/
TikTok: https://www.tiktok.com/@femalelongevity
Twitter:https://x.com/femalelongevity
Website:https://www.kaylabarnes.com/
Spotify:https://open.spotify.com/show/4OLWWn22RGB0argbRPvAaQ?si=8e91b3c9e0ce4054
Apple:https://podcasts.apple.com/us/podcast/longevity-optimization-with-kayla-barnes-lentz/id1591130227
Follow Her Female Protocol: https://www.protocol.kaylabarnes.com

Connect with Dr. Tania Dempsey:
Instagram: https://www.instagram.com/drtaniadempseymd/
LinkedIn: https://www.linkedin.com/in/taniadempsey/
Website: https://drtaniadempsey.com/
YouTube: https://www.youtube.com/@DrTaniaDempsey

#longevity #womenslongevity #mastcellactivationsyndrome #mcas #pmos #histamineintolerance #endometriosis #womenshealth #chronicillness #rootcausemedicine #hormonehealth #inflammation

Pregnancy has long been treated as a season to slow down and play it safe. The data tells a different story, and it starts with a number most women were taught to fear.
Dr. Margie Davenport, PhD, is an exercise physiologist and professor at the University of Alberta who has spent over a decade studying how the body moves through pregnancy, postpartum, and the years before.
What stayed with me most: a pregnancy complication isn't just a pregnancy problem. It's information about a woman's future heart health that most of us are never told to pay attention to.
Track your hormones at home with Mira. 
Get 25% off Mira kits at https://www.miracare.com/ with code “KAYLA”
Support cellular health with Solaray Spermidine, featuring 3.3 mg of spermidine from rice germ extract: https://solaray.com/products/spermidine  
Use the code “KAYLABARNES” at checkout for 30% off your order.
This conversation explores
Why the “stay under 140 beats per minute” rule taught to pregnant women for decades was already outdated before most of us ever heard it

What Dr. Davenport's lab is learning by tracking a baby's heart rate and blood flow in real time during heavy lifting and high intensity training

Why gestational diabetes, preeclampsia, and gestational hypertension are now considered a risk factor for future heart disease as strong as smoking

Why the “high risk at 35” label given to so many pregnancies is based on outdated data rather than a woman's actual health

Why almost no strength exercise, including deadlifts and heavy squats, has been shown to need to be avoided in a low risk pregnancy

Why the standard advice to wait six weeks and then resume normal activity after birth has little evidence behind it

How staying active after birth is tied to a real reduction in postpartum depression and noticeably better sleep quality, even when total sleep doesn't change

Join the most comprehensive *female-specific community for health and longevity optimization.* After over a decade dedicated to human performance and women’s health, I created this space to share everything you need to know to optimize health and lifespan. Inside, you’ll get access to exclusive protocols, live Q&As, the latest female longevity science, and a private, supportive community of like-minded women.
https://kayla-barnes-lentz.circle.so/female-longevity-community
Connect with Kayla:
Instagram: https://www.instagram.com/kaylabarnes/
TikTok: https://www.tiktok.com/@femalelongevity
Twitter:https://x.com/femalelongevity
Website:https://www.kaylabarnes.com/
Spotify:https://open.spotify.com/show/4OLWWn22RGB0argbRPvAaQ?si=8e91b3c9e0ce4054
Apple:https://podcasts.apple.com/us/podcast/longevity-optimization-with-kayla-barnes-lentz/id1591130227
Follow Her Female Protocol: https://www.protocol.kaylabarnes.com
Learn more about Dr Margie:
Instagram: https://www.instagram.com/drmargiedavenport/
LinkedIn: https://www.linkedin.com/in/margie-davenport-b3095825/ 
X: https://x.com/ExercisePreg 
Website: https://www.ksr.ualberta.ca/exerciseandpregnancy/index.php
#womenshealth #gestationaldiabetes #preeclampsia #pelvicfloor #diastasisrecti #fertility #cardiovascularhealth #strengthtraining #hiit#longevity #womenslongevity #pregnancyexercise #exerciseinpregnancy #postpartumrecovery #prenatalfitness

Muscle is not just something you build in the gym. Dr. Gabrielle Lyon has spent her career arguing it's the organ that actually determines how well you age, and almost none of us have been taught to think about it that way.
Dr. Gabrielle Lyon, DO, is the founder of Muscle-Centric Medicine and the New York Times bestselling author of Forever Strong. She's spent over two decades studying muscle as the most overlooked organ in medicine.
The line that stuck with me most: she believes we're on track to trade an obesity epidemic for a sarcopenia epidemic, and most people won't see it coming until it's already happened. It's the kind of prediction I can't stop turning over, especially knowing how many women are on these medications right now without anyone telling them how to protect their muscles while they're on them. 
Join the most comprehensive *female-specific community for health and longevity optimization.* After over a decade dedicated to human performance and women’s health, I created this space to share everything you need to know to optimize health and lifespan. Inside, you’ll get access to exclusive protocols, live Q&As, the latest female longevity science, and a private, supportive community of like-minded women.
https://kayla-barnes-lentz.circle.so/checkout/become-a-member
This conversation explores:
Why muscle, not weight, decides how you age

Why most women are not eating enough protein

The protein habit most people get backwards

Why menopause doesn't have to mean muscle loss

What GLP1 users need to know to protect muscle

Connect with Kayla:
Instagram: https://www.instagram.com/kaylabarnes/
TikTok: https://www.tiktok.com/@femalelongevity
Twitter:https://x.com/femalelongevity
Website:https://www.kaylabarnes.com/
Spotify: https://open.spotify.com/show/4OLWWn22RGB0argbRPvAaQ?si=8e91b3c9e0ce4054
Apple: https://podcasts.apple.com/us/podcast/longevity-optimization-with-kayla-barnes-lentz/id1591130227
Follow Her Female Protocol: https://www.protocol.kaylabarnes.com
Learn more about Dr. Gabrielle Lyon:YouTube: https://www.youtube.com/@DrGabrielleLyon
Instagram: https://www.instagram.com/drgabriellelyon/
X: https://x.com/drgabriellelyon
Website: https://drgabriellelyon.com/

#longevity #musclecentricmedicine #muscle #proteinintake #strengthtraining #womenslongevity #sarcopenia #menopause #perimenopause #womenshealth #hormonereplacement #longevityoptimization #biohacking #GLP1