Longevity Optimization with Kayla Barnes-Lentz

Brain health problems rarely begin where most people look. Memory issues, low mood, poor focus, anxiety, and even early cognitive decline can be driven by hidden inflammation and root-cause imbalances long before they show up the way most people expect.

In this episode, Dr. Eboni Cornish explains how chronic infections, mold, toxins, hormones, gut dysfunction, and oral or nasal microbial imbalances can all affect the brain, and why “mental health” often needs to be approached as brain health first.

She also shares how tools like brain imaging, inflammation markers, and functional testing can uncover patterns that...

Blood sugar stability may be one of the most important levers for long term health, yet most people never look at it.In this episode, I am joined by Jessie Inchauspé, widely known as the Glucose Goddess, to examine what glucose spikes are actually doing inside the body and why they matter even if you are not diabetic.We unpack how glucose spikes can influence your mood, focus, cravings, and energy levels, why blood sugar stability matters even if you are not diabetic, and how seeing your own patterns can completely change the way you approach food.Join the m...

Women are told to fast, cut carbs, eat high protein, avoid seed oils, and track macros, but most of that advice ignores female physiology.

In this episode, I’m joined by Dr. Deanna Minich, PhD, certified functional medicine practitioner and nutrition scientist. We walk through the Female Longevity Nutrition Protocol she created, including circadian timing, macro ranges by life stage, and how to stop getting whiplash from internet nutrition trends.

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...

Cold exposure is not a badge of toughness. It’s a stressor.

And if you do it wrong, you can absolutely overdo it.

In this episode, I’m joined by Dr. Susanna Søberg, PhD, scientist and educator specializing in metabolism, cold and heat exposure, and longevity. We break down what cold exposure is actually doing in the body, why brown fat matters for metabolic health, and how women should think about timing cold exposure around PMS, luteal phase, and menstruation.

Join the most comprehensive *female-specific community for health and longevity optimization.* After over...

Pelvic floor problems are not a “just do more kegels” issue.For a lot of women, kegels are either not specific enough, or they make symptoms worse.

In this episode, Dr. Stephanie Riley Hahn, pelvic floor physical therapist and founder of Longevity and Pilates, breaks down what pelvic floor dysfunction actually is, how to tell weakness from tightness, and why pressure management and breathing mechanics often matter more than squeezing harder.

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 create...

Longevity isn’t just workouts, supplements, and recovery tools, it starts with nervous system health. 

In this episode, Dr. Aimie Apigian explains what trauma actually is (not a label, but a measurable physiological response), how the body shifts from stress into overwhelm, and why “pushing through” often turns into years of avoidance, numbing, and hidden internal strain.

She breaks down the biology behind the trauma response, including the role of adrenaline, cortisol timing, and how mitochondrial capacity influences resilience.

You’ll also learn her practical, body-based approach to creating “safe enough” in real time, plus th...

For the first time in history, ovarian biological age can be measured, and I became the first woman in the world to take the test.

Until now, women have had no real way to understand how their ovaries are aging beyond rough estimates like AMH. But this new machine-learning algorithm, trained on over 40,000 real women across different life stages, analyzes hormone biomarkers, body composition, and reproductive history to estimate ovarian age relative to chronological age.

This is a massive step forward in female longevity science.

Perimenopause is not just about hormones, it’s a metabolic transition that affects insulin sensitivity, gut health, stress tolerance, and long-term disease risk.

In this episode, Cynthia Thurlow, board-certified nurse practitioner and functional medicine expert, explains how women’s metabolism changes in midlife and why insulin resistance, poor stress resilience, and gut dysfunction often appear years before menopause.

She breaks down how perimenopause can begin earlier than most women expect, why symptoms vary so widely, and how lifestyle factors like fasting, exercise intensity, sleep, alcohol, and chronic stress interact with hormones during this transition.

Jo...

When cellular energy production is impaired, no diet, supplement, or health protocol can work as intended.

In this episode, Dr. Chris Masterjohn, nutrition scientist and expert in micronutrients and metabolism, explains why mitochondrial function is the limiting factor behind stalled progress, persistent fatigue, and supplements that stop working over time.

He breaks down why vitamin D supplementation often creates new problems when it is taken without proper nutrient balance, how high doses can disrupt other systems in the body, and why sunlight has biological effects that vitamin D pills alone cannot replicate.

Join...

In this episode, Dr. Jessica Shepard, board-certified OB/GYN and Chief Medical Officer of Hers, shares that the FDA just removed the black box warning on hormone replacement therapy after 23 years.

We discuss what actually happened with the WHI study that created all the fear around estrogen and breast cancer, and why the research never actually supported that narrative.
Dr. Shepard explains why you shouldn't wait until menopause to start the HRT conversation and how starting in your perimenopausal years can make all the difference for long-term health. Dr. Shepard shares the essential labs she runs on...

What if your blood is what’s making you sick and the key to reversing it is removing it?

In this episode, I sit down with Dr. Khanh Nguyen, a regenerative and anti-aging physician, to explore therapeutic plasma exchange and the rising use of young plasma. We talk detox, autoimmune disease, aging, peptides, and why your blood might be holding you back.

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...

Is your environment silently sabotaging your fertility?

Dr. Ann Shippy joins the show to reveal how hidden toxins, mold, and overlooked cellular damage may be accelerating ovarian aging and how to reclaim your fertility before it’s too late. From infertility misdiagnoses to rising autism rates, we dive deep into the tests most doctors never run, and the real impact your body’s toxic load has on future generations. 

Kayla's social + website:

Instagram:  kaylabarnes

TikTok:  femalelongevity

Twitter: https://x.com/femalelongevity

Website: https://www.kayla...

Ashley Koff is a registered dietitian and author who spent 20 years discovering that weight and health aren't separate issues, they're connected through "weight health hormones." After her own struggles with restrictive eating despite doing everything "right," a functional medicine doctor helped her understand what was actually broken, and that was, her body's natural hormone function.

In this episode, Ashley explains why GLP-1 medications like Ozempic work, who actually needs them, and the critical foundational work required to avoid devastating rebounds. She reveals why current dietary guidelines fail women, shares her free weight health hormone assessment, cuts through...

In this video, Dr. Will Bulsiewicz shares his transformation from an overweight, depressed gastroenterologist to a gut health expert after meeting his now-wife changed his entire approach to food. He reveals why 95% of Americans are fiber deficient and how this single nutrient could be the key to longevity. Dr. B breaks down the science of the gut microbiome, explains why hyperpalatable foods force us to overeat 500 extra calories per day, and shares actionable strategies for rebuilding your gut health in as little as 3-5 days.

Guest’s socials + website

Instagram: @theguthealthmd 

Website: https://thegu...

Women don’t fail January — January fails women. Nearly 80% of New Year health goals are abandoned within weeks, not because of discipline, but because most plans ignore female biology. That’s why I created the 30-Day Female Longevity Challenge — a physiology-first way to prepare calmly and build health that actually lasts. Save $50 with code 2026. https://kayla-barnes-lentz.circle.so/checkout/female-longevity-challenge-2026?coupon_code=2026When you join, you also get one full year access to my female membership for on-going accountability, my monthly AMAs, a female support community, access to my 20 other courses and more! Optimizing your home: https://www.youtube.com/watc...

In this conversation, Kayla sits down with Dr. Sarah E. Hill, PhD to talk about the science behind PMS, cycle syncing, and why most health advice completely fails women. Dr. Hill explains the three main causes of PMS symptoms, natural hormonal shifts, one-size-fits-all protocols designed for men, and lack of cellular resilience.

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...

For years, functional medicine has focused on lab results and supplement protocols. Dr. Deanna Minich knows there's a deeper layer most practitioners miss. As a nutrition scientist who worked under Dr. Jeffrey Bland and educated for the Institute for Functional Medicine, she's witnessed how artificial light at night disrupts women's hormones more than almost any other factor, yet it's completely ignored.
In this episode, Dr. Minich reveals why 85% of people are Omega-3 deficient despite supplementing, how eating a rainbow of 30+ plant species weekly rebuilds your microbiome diversity, and why your skin's "photo-metabolome" produces healing compounds from sunlight that...

Everyday “healthy” choices might be silently rewiring your immune system—from canned soup and tap water to perfume, makeup, and even your couch—while autoimmune diseases quietly explode, especially in women. In this gripping conversation, Dr. Aly Cohen reveals how under-regulated chemicals, hidden toxins, and epigenetic changes may be driving the autoimmune epidemic, but also how strategic swaps, smarter water, food, air, and a 4-A framework can actually change the destiny of your health. If you’ve ever wondered whether you can truly detox, reverse flares, and protect future generations, this episode turns overwhelming science into a suspenseful, empowering roadmap.<...

In this episode, Kayla sits down with Dr. Karan Rajan, who is one of the most followed medical professionals on social media, and he breaks down the gut microbiome like you've never heard before. If you've ever felt bloated after eating fiber, tried keto and felt amazing temporarily, or wondered why your "clean" diet isn't delivering results, this episode is for you.
They talk about why fiber is non-negotiable fuel for your gut bacteria, how to gradually increase intake from 10g to 50g+ daily, and the specific prebiotic fibers that matter most. Dr. Rajan shares his daily eating...

Your home could be triggering your allergies and nobody's checking. Dr. Tania Elliott sees patients struggling with reactions that disappear before they can get to the doctor's office. That's why she started doing virtual home tours to find what's really causing the problem.In this episode, Dr. Elliott explains why that new couch smell is actually toxic, how synthetic candles mess with your hormones, and why our obsession with being too clean backfired into an allergy epidemic. She digs into Mast Cell Activation Syndrome, shares why peanut allergies in kids went through the roof after we delayed introducing peanuts...

Are you planning to get pregnant, currently pregnant, or postpartum? This conversation with dietitian Lily Nichols will change how you think about nutrition during these critical life stages.Lily reveals that over 90% of women have nutrient deficiencies that directly impact fertility, pregnancy outcomes, and postpartum recovery. Most women have no idea they're lacking essential nutrients like protein, iron, zinc, B12, choline, and vitamin A until it's already affecting their hormones and ability to conceive. She explains why you need 7 to 8 months of preconception nutrition to build up nutrient stores before getting pregnant, the Goldilocks body fat percentage for optimal...

Are you dealing with unexplained fatigue, hormonal imbalances, brain fog, or chronic inflammation that doctors can't figure out?

In this episode, Dr. Jess Peatross explains why so many people are sick with "mystery symptoms" that doctors can't solve. She breaks down the toxins and infections making you sick, how to test for them properly, and her step-by-step "Kill Bind Sweat" detox method. So, if you've been told "it's all in your head" or that your labs are normal but you still feel awful, this episode will give you real answers and a clear path forward.

...

When a top surgeon faces his own health collapse, he’s forced to question everything he’s ever believed about medicine. In this gripping conversation, Dr. Darshan Shah reveals how hitting rock bottom led him to uncover the true keys to longevity — from biomarker mastery and advanced testing to the future of AI-driven health and gene therapy.

This episode will make you rethink what it means to live — and how long you can do it.

Join the most comprehensive female-specific community for health and longevity optimization.

After over a decade dedicated to human performa...

Most people think heart disease is just about cholesterol. But what if the real issue is in your genes, your environment, and even your daily stress?

In this episode, I’m joined by Dr. Christopher Davis, a triple board-certified interventional cardiologist who’s redefining what it means to take care of your heart. After years of performing stent procedures, he realized the conventional system was only treating symptoms, not causes. So he made a bold shift from reactive cardiology to a root-cause approach that blends advanced testing, functional medicine, detoxification, and even ancient healing wisdom. We discuss how...

Brain coach Jim Kwik went from being called “the boy with the broken brain” to teaching millions how to unlock their limitless potential. In this episode, he reveals the simple shifts that supercharge focus, memory, and learning speed—helping you read faster, think clearer, and retain more.

Discover why mindset, motivation, and method are the three keys to peak mental performance, and how to apply them in everyday life. Whether you’re an entrepreneur or lifelong learner, this conversation will change the way you use your brain.

Join the most comprehensive female-specific communit...

A lot of women are tired, busy, and trying to stay healthy. But what if you didn’t need to do everything perfectly to feel good? In this episode, we talk about the key parts of health that matter most. You’ll learn how much sleep your body actually needs, what kind of movement helps you stay strong, how to eat for steady energy, and why your relationships can change your health.

We also talk about real numbers and real habits that work. All you have to do is to learn what truly helps your...

Dr. Brad Schoenfeld, PhD is one of the world’s leading researchers on muscle hypertrophy (muscle growth). He is a Professor of Exercise Science at Lehman College in New York, where he directs the Human Performance Laboratory. Over his career, he has published more than 300 peer-reviewed articles, book chapters, and textbooks on resistance training, body composition, and nutrition.

He is the author of Science and Development of Muscle Hypertrophy and The Max Muscle Plan, and has received prestigious honors such as the NSCA Young Investigator of the Year and the Dwight D. Eisenhower Fitness Award. Beyond academia, he ha...

For years, women have been told that birth control or IVF are the only solutions to reproductive issues. Dr. Naomi Whitaker knows that’s not the full story. Through Restorative Reproductive Medicine, she helps women identify the deeper health imbalances that fuel infertility, endometriosis, PCOS, and hormones, and shows how healing the body’s natural rhythms can change everything. 

In this episode, Dr. Whitaker reveals why standard lab ranges are often misleading, how cycle charting can act like a “health report card,” and why bioidentical hormone support is a game changer for energy, mood, and long-term vitality. She also...

Today I’m joined by Dr. Lara Briden, a naturopathic doctor, best-selling author, and internationally recognized expert in women’s hormones for a wide-ranging conversation on cycle health and why ovulation is a vital sign of wellbeing.

We talked about how monthly ovulation creates hormones that support bones, metabolism, and brain function, and what happens when that rhythm is disrupted by stress, restrictive eating, or birth control. Dr. Briden explains why natural estradiol and progesterone are so protective, how they differ from synthetic hormones, and what that means for both younger women and women appr...

Join us in this insightful episode as we sit down with Dr. Ja-Nae Duane, a behavioral scientist, futurist, and bestselling author. We delve into the intersection of exponential technology, human systems, and the future of health. Discover how Dr. Duane's journey from opera singer to futurist informs her mission to improve life for a billion people.

Chapters:

Introduction to Dr. Janaye Duane (0:00 - 2:30)

From Opera Singer to Futurist (2:31 - 10:00)

The Im...

Brigid Titgemeier, a functional medicine dietitian and founder of Being Brigid Nutrition, has seen countless women walk into her clinic exhausted, bloated, and frustrated despite eating all the right foods. She knows that feeling firsthand, too. Instead of blaming willpower or cutting out everything you love, Brigid discovered how simple, personalized nutrition changes could completely shift energy, hormones, and mood.

In this episode, she shares why common advice like “just eat clean” or “go low-carb” often backfires, and what really moves the needle when it comes to gut health, hormone balance, and long-term vitality. We also talked about th...

What if aging wasn’t just something that happens to us, but something science could actually slow down? That’s the question at the heart of today’s conversation with Dr. Matt Kaeberlein, who’s a leading scientist and longevity researcher at the University of Washington.

Dr. Kaeberlein has spent decades decoding the biology of aging, from cellular mechanisms to practical strategies that could extend not just how long we live, but how well we live. In this episode, we talked about surprising connections between aging and brain health, and looked into the research around lithium and Alzhe...

What if aging wasn’t just something that happens to us, but something science could actually slow down? That’s the question at the heart of today’s conversation with Dr. Matt Kaeberlein, who’s a leading scientist and longevity researcher at the University of Washington.

Dr. Kaeberlein has spent decades decoding the biology of aging, from cellular mechanisms to practical strategies that could extend not just how long we live, but how well we live. In this episode, we talked about surprising connections between aging and brain health, and looked into the research around lithium and Alzhe...

Join us in this powerful episode as we sit down with Dr. Natalie Crawford, a double board-certified OB/GYN and reproductive endocrinologist. We explore her personal journey with recurrent pregnancy loss, the rising rates of infertility, and the impact of inflammation, toxins, and lifestyle on reproductive health. Discover how Dr. Crawford is reshaping fertility care and empowering women to understand their bodies, advocate for their health, and make informed choices about their future.

Chapters:

00:00 – Introduction

02:15 – Dr. Crawford’s personal fertility journey & miscarriages

07:07 – Discovering inflammation, toxins & celiac c...

Today I’m joined by Dr. Bill Rawls, a board-certified physician and bestselling author, for a wide-ranging conversation on chronic illness, healing, and what it really takes to protect long-term health. We dive into the challenges people face when conventional medicine falls short, the role of lifestyle and environment in recovery, and the surprising power of natural approaches to restore balance in the body.Dr. Rawls also shares insights on resilience, aging, and why true wellness depends on going deeper than symptom management.

If you’ve ever struggled with confusing health issues or wondered why the body some...

Today I’m joined by Dr. Brooke Stubbs, a double board-certified physician in internal and lifestyle medicine, for a deep dive into inflammation, what drives it, how it shows up in the body, and why so many women are silently affected by it. We explore how gut dysfunction, hormone imbalances, poor sleep, and emotional stress contribute to chronic symptoms like fatigue, bloating, brain fog, and burnout. Dr. Stubbs shares why inflammation is often overlooked in conventional care—and how a functional, root-cause approach can lead to lasting healing.She also explains how food, movement, stress management, and environment can eith...

In this conversation, I sit down with Nick to unpack the deeper science behind GLP-1s and metabolic health. We explore how compounds like Tirzepatide and GLP-1 agonists go beyond weight loss, influencing everything from cardiovascular elasticity and neuroinflammation to mood, cognition, and gut-brain signaling. We also discuss lesser-known drivers of real change, like adiponectin, MPO, and the surprising effects of statins on inflammation.But the conversation doesn’t stop with human health. We dive into the behavioral power of the microbiome, how dogs might reduce childhood allergies, and whether AI can actually translate what your pet is thinking. If...

In this conversation, Kayla and Dr. Amy Killen discuss the critical aspects of women's hormonal health, emphasizing the importance of estrogen, the impact of menopause, and the need for accurate information regarding hormone therapy. She highlights the significance of bone health, the role of lifestyle in hormonal balance, and emerging treatments that can enhance women's health. The discussion also touches on the intersection of women's health and environmental policy, as well as the evolving relationship between doctors and patients in the age of technology.

Dr. Amy Killen, MD is a leading expert in anti-aging a...

In this episode, we explore the intersection of ovarian health, menopause, and AI technology with Kiran, the founder of TimelessBioTech. The conversation delves into the importance of ovarian longevity for women's health, the predictive tools being developed to forecast menopause timing, and the various interventions that can support ovarian health. Kiran shares insights on hormonal balance, the role of lifestyle factors, and the future of personalized health strategies for women. The discussion emphasizes the need for targeted solutions and the potential for AI to revolutionize women's health care.

Timeless Biotech Website

Kiran's...

Meet my new doctor, Dr. Sara Szal Gottfried.

I am so excited about our new duo! This conversation explores various topics including medical gaslighting, hormonal health, Kayla's labs including genetic testing, nutrition, inflammation, and the impact of environmental toxins. Sara and Kayla emphasize the need for personalized care and proactive health strategies for women, aiming to empower listeners with knowledge and actionable insights.

Chapters

00:00 Introduction to Women's Health Podcast

02:53 Exploring Longevity and Women's Health

05:30 The Impact of Medical Gaslighting on Women

08:18 Understanding Hormonal Health...