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PODCAST

Boundless Life

Free fitness, nutrition, biohacking, fat loss, anti-aging and cutting-edge health advice from BenGreenfieldLife.com! Tune in to the latest research, interviews with exercise, diet and medical professionals, and an entertaining mash-up of ancestral wisdom and modern science, along with Q&A"s and mind-body-spirit optimizing content from America"s top personal trainer.

health & fitness fitness

All Episodes

52:33

Reset Your Nervous System in THREE MINUTES Flat?! The...

Boundless Life ·

2026/03/05

Full Show Notes: bengreenfieldlife.com/ohmpodcast In this episode, I welcome back my former podcast sidekick, Dr. Jay Wiles—a leading performance psychologist and expert in nervous system optimization. Together, we dive deep into the science of resonance breathing, unpacking how this surprisingly simple practice can dramatically improve your heart rate variability, stress resilience, emotional well-being, and sleep quality. We also get hands-on with the cutting-edge Ohm lamp, an innovative

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6:30

Are We Just *Modern Zoo Animals*? The Ancestral...

Boundless Life ·

2026/03/03

A morning-to-bedtime blueprint for living more like your ancestors without a hyperbaric chamber, a hippie grocery bill, or a single scoop of overpriced supplement powder. Episode Summary In this final part of my 4-part “Ancestral Mismatch” series, I walk you through a complete sample day that ties together everything we've covered—hormesis, environment, and nutrition—into one practical, affordable routine. From throwing open your curtains at sunrise to donning a $20 red light

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64:41

Reset Your Body's Metabolism for FASTER Weight Loss &...

Boundless Life ·

2026/02/28

Full Show Notes: bengreenfieldlife.com/hungercode On this episode, I got to geek out with Dr. Jason Fung and unravel why calorie counting alone doesn’t explain our weight struggles. Dr. Fung used jaw-dropping stats—like nearly identical calorie consumption between nations with wildly different obesity rates—to illustrate how hormones, digestion, and even the microbiome play a much bigger role than just numbers. We also broke down the three types of hunger—homeostatic,

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58:26

Does It Really Matter How HOT Your Sauna Gets, Should...

Boundless Life ·

2026/02/26

Full Show Notes: BenGreenfieldLife.com/sunlightenpodcast This episode is all about clearing up confusion and bringing practical advice to the world of sauna use. I brought on Connie Zack, who co-founded one of the most highly regarded infrared sauna companies, to help break down the research, technology, and best practices. We discussed questions like how hot a sauna needs to get, whether the latest gadgets and red lights are worthwhile, the real science behind detox and heat stress, and even tips

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8:05

Are We Just *Modern Zoo Animals*? The Ancestral...

Boundless Life ·

2026/02/24

Discover why cotton candy can beat a corn dog, how the perimeter-of-the-store hack simplifies everything, and what it really looks like to eat like your great-grandparents. Episode Summary In part 3 of the “Ancestral Mismatch” series, Ben Greenfield delivers three no-nonsense dietary strategies that anyone can implement without breaking the bank or setting foot in an overpriced health food store. You'll learn why fried seed oils are more damaging than sugar (and why Ben would choose

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60:40

Why You Need FAR Less Carbs Than You Think...

Boundless Life ·

2026/02/21

Full Show Notes: bengreenfieldlife.com/drandrew2 In this episode, Dr. Andrew Koutnik returns for part 2 of our deep dive into metabolism and nutrition. We explore why you need far fewer carbohydrates than you think—both during daily life and intense exercise—and how sustained blood glucose levels for brain energy metabolism matter more than muscle glycogen stores. Andrew breaks down the different types of exogenous ketones, debunks liver toxicity concerns, and shares groundbreaking

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33:51

An Exercise Hack For A Better Brain, Why Your Vitamin...

Boundless Life ·

2026/02/19

Full Show Notes: bengreenfieldlife.com/497 Welcome to another solo episode. This weekI kick things off sharing my most effective hair health strategies, from nutrition and hormones to unique tools like derma rolling, red light therapy, and even topical caffeine—plus, why genetics aren’t your whole hair story. I break down a fascinating new study showing how magnesium holds the key to actually making your vitamin D work for you. I reveal why the length and intensity of your walking

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4:41

Are We Just *Modern Zoo Animals*? The Ancestral...

Boundless Life ·

2026/02/17

*The air you breathe, the light you see, and the water you drink have all been quietly sabotaged by modern life—here's how to fight back without ripping your house apart.* Episode Summary In this episode, we shift from last week's hormesis deep-dive to the second weapon in your ancestral mismatch arsenal: your environment. You'll discover how degraded air quality, flickering LED lights, contaminated water, and invisible EMFs are silently wrecking your sleep, fogging your brain, and loading you

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61:28

Are Blue Light-Blocking Glasses Really A SCAM?! (&...

Boundless Life ·

2026/02/14

Full Shownotes:BenGreenfieldLife.com/bluelighttruth In this episode, Matt Maruca, CEO and co-founder of Ra Optics, dives deep into the science and practical realities of blue light, circadian health, and optimizing your environment for better sleep and longevity. We tackle the nuances of blue light exposure from sunlight versus artificial sources, break down how proper blue light-blocking glasses can support melatonin production and overall wellness, and bust common myths—including those from

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57:06

The *Best Of* Protocols to Reset Your Brain, Boost...

Boundless Life ·

2026/02/12

Episode Full Show Notes: https:/bengreenfieldlife.com/optimizedliving In this special "Best Of" episode, I pulled together some of the most impactful conversations to help you kickstart your boundless life. If you’re feeling stuck, battling brain fog, chronic fatigue, or just know that you’re capable of more, this episode is your reset button. I’ve pulled together the most actionable, powerful conversations with multiple experts from the past year to give you a true roadmap to

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8:13

Are We Just *Modern Zoo Animals*? The Ancestral...

Boundless Life ·

2026/02/10

Why Comfort is Slowly Killing You—And the Ancient Mismatch Making You Sick How modern life has turned us into zoo animals—and the simple stress strategy our ancestors used to stay strong, lean, and disease-free. Over the past five weeks, I’ve given you my perspective on the biohacking and longevity scene. I’ve noted the emptiness and time-wasting that can result from the vain pursuit of immortality so often seen in the “advanced” health optimization world (if you

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59:10

The Coolest, Craziest Oral Peptides (& Where To Get...

Boundless Life ·

2026/02/07

Full Show Notes: bengreenfieldlife.com/lnkyal/ In this episode, you'll get to discover the fascinating realm of revolutionary peptides with two-time guest, Kyal Van Der Leest — a distinguished naturopath, nutritionist, supplement formulator, and the founder of LVLUP Health (use code BEN10 to save 10%). Discover how these powerful compounds can rapidly repair tissues, elevate your energy by boosting NAD levels, sharpen your mind, and even naturally enhance sexual health, offering alternatives

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27:02

Ben's #1 "Sleep Simulation" Tactic: The Art &...

Boundless Life ·

2026/02/05

Full Show Notes: bengreenfieldlife.com/lnraw12 In this episode, I pull back the curtain on one of the single most powerful tools in my daily performance and recovery toolkit: Non-Sleep Deep Rest (NSDR) and its close cousin, Yoga Nidra. If you’ve ever found yourself burning the candle at both ends—waking up at 4:30 AM to fit in work, workouts, and family life—yet still trying to show up at your best, this is for you. I cover common myths around short sleep, explain why even

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48:17

The Surprising Science Of Injecting Young Blood,...

Boundless Life ·

2026/01/31

Full Show Notes: https://bengreenfieldlife.com/austinplasma/ In today's eye-opening episode with repeat guest, Dr. Khanh Nguyen, the founder of Austin Regenerative Therapy, you'll take a deep dive into the world of cutting-edge regenerative medicine. After spending three intense days undergoing her advanced protocols—from full-body regenerative therapies to some of the most boundary-pushing treatments I’ve ever experienced—you’re about to get an inside look at what’s

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58:25

How To Be "Forever Strong", Creating The Right Amount...

Boundless Life ·

2026/01/29

Full Show Notes: bengreenfieldlife.com/foreverstrong Dr. Gabrielle Lyon is an accomplished physician and theNew York Timesbestselling author ofFOREVER STRONG: A New, Science-Based Strategy for Aging Well and author of the just released ,The Forever Strong PLAYBOOK. Her groundbreaking Muscle-Centric Medicine® approach places muscle at the center of disease prevention, metabolic health, and true vitality. And while she works with and trains elite athletes, military operatives, and public figures,

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46:36

The Best Way To Use Hydrogen For Health, Finding A...

Boundless Life ·

2026/01/24

Full Show Notes: bengreenfieldlife.com/496 In this episode, I share my personal experiences with advanced medical therapies in Austin and answer your questions about hydrogen for health, including the science behind it and practical ways to use it—from tablets to inhalation and baths. I also give advice on how to find a trustworthy hormone doctor, what credentials to look for, and recommend a few experts and clinics that I actually trust, based on my wife’s HRT journey. On the research

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58:13

Peptides, Biologics & Small Molecules You've *Never...

Boundless Life ·

2026/01/22

Full Show Notes: https://bengreenfieldlife.com/lavalle/ In this episode, I sit down with the legendary clinical pharmacist Jim LaValle for a fascinating exploration of some of the most innovative approaches to health, performance, and longevity. We discuss everything from peptides and small molecules for mitochondrial and kidney support to the science behind improving VO2 max, brain function, sleep, and more. Jim LaValle unpacks his decades of experience, shares cutting-edge research on metabolic

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75:59

Light As Medicine, Metabolic Typing, COVID...

Boundless Life ·

2026/01/17

Full Show Notes:https://bengreenfieldlife.com/lnleland/ From the science behind sunlight, circadian lighting, and EMFs to practical tips on breathwork, cold exposure, and personalized nutrition, this wide-ranging conversation is packed with actionable insights. You'll learn why optimizing your external environment—light, air, water, and even mindset—is just as vital as what you eat, plus discover how environmental factors can impact everything from immune health to sleep quality. Whether

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62:18

What You've Been Told About the Vagus Nerve is WRONG...

Boundless Life ·

2026/01/15

Full Show Notes: https://bengreenfieldlife.com/vaguspodcast/ On today's podcast, we dive deep into the fascinating connection between the vagus nerve and the immune system, exploring how these two critical systems communicate bidirectionally. We examine the role of immune cells throughout the body and discuss recent advances in bioelectronic medicine. This episode offers a fresh perspective on nervous system regulation and its impact on overall health, especially concerning the gut brain axis. Dr

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60:51

The Weirdest, Most Shocking Things You Can Learn...

Boundless Life ·

2026/01/10

Full Show Notes: https://bengreenfieldlife.com/glucosesurprises Josh Clemente, Founder and CEO of Levels, is a systems engineer and metabolic health enthusiast. At SpaceX, he led a team to develop life support systems that in May of 2020 began sustaining astronauts on trips to and from the International Space Station aboard Crew Dragon: the first privately developed human-rated orbital spacecraft in history. Josh has spent the past decade obsessed with extending the lives of those he loves by

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1,666 results

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