Boundless Life

Full show notes: https://bengreenfieldlife.com/dylan
In this episode with Dylan Gemelli, you'll hear one of the wildest origin stories in the health world. Dylan went from college athlete to Milan model to cocaine dealer to a 15-year prison sentence, and came out on the Fourth of July with two felonies, no job prospects, and a decision to start over. Within a year he had a million YouTube subscribers explaining compounds almost nobody was talking about yet, and today he hosts the number one health and fitness podcast in the country.
You'll also get the practical side: what SARMs really are and why he turned against steroids, what happened when a routine calcium score came back at 120 with an Lp(a) of 330, how he pushed back against the Mayo Clinic and got that number down into the 90s anyway, and what he learned about ejection fraction and chronic cardio the hard way. Dylan explains why he believes many biohackers are among the unhealthiest people out there, how stacking too many supplements and peptides creates redundancy that backfires, and which lesser-known peptides will rise in popularity.
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Full show notes: https://bengreenfieldlife.com/blackseedoil
In this episode with Dr. Michael Murray, one of the most respected figures in natural medicine and the formulator of ThymoQuin®, you'll discover the science behind black seed oil: what thymoquinone actually is, why the full spectrum of the seed's compounds matters more than chasing a single active ingredient, and why it may be the most powerful adaptogen yet measured for lowering cortisol, dropping the stress hormone 22 to 44% in stressed people. You'll hear how it supports your gut by calming harmful bacteria without wiping out the good ones, the surprising dose range where it helps rather than harms your microbiome, and its effects on inflammation, metabolic health, blood pressure, blood sugar, sleep, and candida.
Dr. Murray also explains what makes his USP-monographed ThymoQuin different from ordinary black seed oil, why keeping free fatty acids low keeps it active, how to spot adulterated products, and the simple daily protocol he follows himself at 68. It's a grounded, myth-busting look at one of the oldest plant medicines on earth.
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Full show notes: https://bengreenfieldlife.com/sunpodcast
In this episode, journalist Rowan Jacobsen, author of In Defense of Sunlight, challenges everything you thought you knew about sun exposure. Modeled after Michael Pollan's In Defense of Food, his book argues we've been gaslit into a "zero-sun policy" the science does not actually support. You'll hear why melanoma is tied to intermittent sunburns rather than steady sun, the surprising 2024 research suggesting UVB may be protective while UVA is the real concern, and how office culture, window glass, and car windows may all be hidden pieces of the skin cancer puzzle.
You'll also learn why the vitamin D supplement story is more complicated than the pills suggest, how sunlight lowers blood pressure through nitric oxide and lifts your mood through natural opioids, where sunscreen genuinely helps and where hats and shirts do better, what to make of the new sunscreen ingredient Bemotrizinol, and how a simple 30-day reset of your light exposure could transform your sleep.
Episode Sponsors:
Dr. Murray Natural Products – ThymoQuin®: A clinically researched black seed oil that supports healthy cortisol levels and resilience to everyday stress, and the only one meeting U.S. Pharmacopeia guidelines. Visit doctormurray.com/ben and use code BEN25 for 25% off all Dr. Murray Natural Products.
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Full show notes: https://bengreenfieldlife.com/peptides2026
In this episode with Dr. Matt Cook, recorded days after he returned from Washington, D.C., you'll get a breakdown of what just happened to peptides in the United States. You'll hear what the FDA's Pharmacy Compounding Advisory Committee actually voted on, why seven popular peptides were pulled two years ago, which six of the seven were just recommended for the bulk list, which one was left off, and what all of it means for your ability to get peptides legally from a pharmacy instead of the gray market.
You'll also get a guided tour of the peptides themselves: BPC-157 for gut and tissue healing, KPV for inflammation, TB-500 for cell migration and wound repair, MOTS-c as an exercise mimetic, Semax for memory and learning, Epitalon for sleep and longevity, and DSIP for sleep. Dr. Cook explains why peptides behave so differently from ordinary drugs, walks through a safety review covering millions of doses, and shows how his company LifeOS pulls your labs, wearables, and genetics into one HIPAA-compliant place. And if you want to keep every peptide straight, Dr. Cook built a peptide cheat sheet covering what each one does, how to dose it, and where to source it.
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Full show notes: https://bengreenfieldlife.com/nickpodcast
In this episode, you'll get a practical, plain-language tour of breathwork with Nick Sweeney, a breathwork coach who rebuilt his body with breath after a college bike accident left him unable to walk. You'll learn his Vortex Breath and the Fibonacci counting behind it, why slow breathing is really cardiovascular training that may predict how long you live, how to pair breath with fascia and mobility work, his routines for better sleep and for combining sauna, breath, and cold safely, where he lands on the cold plunge debate, why the air you breathe matters as much as how you breathe, and his "Billions Will Breathe" mission to get a million (and eventually a billion) people breathing in sync.
Nick is the founder of Coherence, a breathwork app that trains your nervous system to improve deep and REM sleep, HRV, and stress resilience. After doctors told him his skiing career was over, he went from unable to walk to competing at U.S. Nationals within a year using breathwork, cold, and nervous system work, and today he leads a global movement to have people breathe together as one.
Want to breathe in sync with people around the world? You can grab Nick's Coherence app here and use code BEN30 for four weeks free.
Episode Sponsors:
Tecton Ketones: Bioidentical D-beta-hydroxybutyrate (BHB), the same ketone your body makes in ketosis, for clean cognitive support and stable energy with no conversion step. Visit tectonketones.com/ben and use code BEN for 16% off your first order.
Quantum Upgrade: Research shows the Quantum Upgrade increased ATP production in human cells by 20 to 25%. Unlock a 15-day free trial with code BEN15 at quantumupgrade.io.
Our Place: Say goodbye to forever chemicals in your kitchen. Go to fromourplace.com/ben and enter code BEN at checkout for 10% off sitewide.
BON CHARGE: A holistic wellness brand whose products help you sleep better, recover faster, balance hormones, and reduce inflammation. Go to boncharge.com/GREENFIELD and use code GREENFIELD to save 15%.
Dr. Murray Natural Products – ThymoQuin®: A clinically researched black seed oil that supports healthy cortisol levels and resilience to everyday stress. Visit doctormurray.com/ben and use code BEN25 for 25% off all Dr. Murray Natural Products.
See omnystudio.com/listener for privacy information.