From very near the start line of the 2017 Spartan World Championship race in Lake Tahoe, podcast sidekick Brock Armstrong talks with Ian Adamson, former competitive adventure racer, television professional and president of the International Obstacle Sports Federation. They chat about the state of obstacle racing as a recognized sport as well as how the anti-doping regulations could help or hinder it in getting recognized. 

From very near the start line of the 2017 Spartan World Championship race in Lake Tahoe, podcast sidekick Brock Armstrong talks with Ian Adamson, former competitive adventure racer, television professional and president of the International Obstacle Sports Federation. They chat about the state of obstacle racing as a recognized sport as well as how the anti-doping regulations could help or hinder it in getting recognized.

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.

Boundless Life

From very near the start line of the 2017 Spartan World Championship race in Lake Tahoe, podcast sidekick Brock Armstrong talks with Ian Adamson, former competitive adventure racer, television professional and president of the International...

Is Doping an Obstacle: Spartan World Championship Exclusive

Full Show Notes:https://bengreenfieldlife.com/rootsofhealth 

In this special "Best Of" episode, you'll explore some of my most impactful conversations on what actually builds long-term roots of health. If you're dealing with low energy, hormonal issues, chronic inflammation, or just a nagging sense that something's off despite doing all the right things, this episode gives you a clear roadmap.

You'll hear from Daniel Baird on why the synthetic fabric in your underwear may be quietly disrupting your hormones and why microplastics are becoming one of the biggest threats to male reproductive health, while Katy Bowman makes the case that your chair and mattress are doing more damage than you think. Justin Roethlingshoefer shares how a near-death diagnosis at 32 completely rewired his approach to health data and recovery. Dr. Cate Shanahan breaks down how the oils in your kitchen are being incorporated into your cell membranes. Julie Gibson Clark shows how she rebuilt her health from scratch in her 40s. And James Pieratt closes with a deep dive into what Spartan warriors actually trained like, and why it still holds up as one of the most complete blueprints for human performance ever devised.

Whether you listen start to finish or jump to the section that speaks to you most, you'll find something in here that changes the way you think about your health.

Episode Sponsors:

Anthros: Anthros starts with a Precision Posture System at the pelvis so your spine naturally aligns, plus a built-in Clinical Posture Consult. Go to anthros.com and use code BEN for an exclusive $200 discount, risk-free for 60 days.

Kettle & Fire: One ingredient Beef Tallow, 100% grass-fed and finished, for better browning, crispier texture, and a higher smoke point. Head to kettleandfire.com/BEN25 and use code BEN25 for 25% off site-wide.

Quantum Upgrade: Recent research revealed Quantum Upgrade increased ATP production by 20–25% in human cells. Unlock a 15-day free trial with code BEN15 at quantumupgrade.io.

Manukora: Honey with superpowers. Head to manukora.com/ben or use code BEN to get $25 off your Starter Kit.

Full Show Notes: <a href="https://bengreenfieldlife.com/rootsofhealth">https://bengreenfieldlife.com/rootsofhealth</a>&nbsp;
In this special "Best Of" episode, you'll explore some of my most impactful conversations on what actually builds long-term roots of health. If you're dealing with low energy, hormonal issues, chronic inflammation, or just a nagging sense that something's off despite doing all the right things, this episode gives you a clear roadmap.
You'll hear from<a href="https://www.instagram.com/imdanbaird/"> Daniel Baird</a> on why the synthetic fabric in your underwear may be quietly disrupting your hormones and why microplastics are becoming one of the biggest threats to male reproductive health, while <a href="https://www.instagram.com/nutritiousmovement/?hl=en">Katy Bowman</a> makes the case that your chair and mattress are doing more damage than you think. <a href="https://justinroethlingshoefer.com/">Justin Roethlingshoefer </a>shares how a near-death diagnosis at 32 completely rewired his approach to health data and recovery. <a href="https://drcate.com/">Dr. Cate Shanahan</a> breaks down how the oils in your kitchen are being incorporated into your cell membranes. <a href="https://www.juliegibsonclark.com/">Julie Gibson Clark</a> shows how she rebuilt her health from scratch in her 40s. And <a href="https://www.instagram.com/wildhuntconditioning/">James Pieratt</a> closes with a deep dive into what Spartan warriors actually trained like, and why it still holds up as one of the most complete blueprints for human performance ever devised.
Whether you listen start to finish or jump to the section that speaks to you most, you'll find something in here that changes the way you think about your health.
Episode Sponsors:
<a href="https://bengreenfieldlife.com/anthros">Anthros</a>: Anthros starts with a Precision Posture System at the pelvis so your spine naturally aligns, plus a built-in Clinical Posture Consult. Go to <a href="https://bengreenfieldlife.com/anthros">anthros.com</a> and use code BEN for an exclusive $200 discount, risk-free for 60 days.
<a href="http://kettleandfire.com/BEN25">Kettle &amp; Fire</a>: One ingredient Beef Tallow, 100% grass-fed and finished, for better browning, crispier texture, and a higher smoke point. Head to <a href="http://kettleandfire.com/BEN25">kettleandfire.com/BEN25</a> and use code BEN25 for 25% off site-wide.
<a href="http://quantumupgrade.io/">Quantum Upgrade</a>: Recent research revealed Quantum Upgrade increased ATP production by 20&ndash;25% in human cells. Unlock a 15-day free trial with code BEN15 at <a href="http://quantumupgrade.io">quantumupgrade.io</a>.
<a href="http://manukora.com/ben">Manukora</a>: Honey with superpowers. Head to <a href="http://manukora.com/ben">manukora.com/ben</a> or use code BEN to get $25 off your Starter Kit.

The Dirty Truth About Your UNDERWEAR, Cooking Oil & Chair? Microplastics, Hormones, Seed Oils, HRV & More: Best Of Roots Of Health

Full Show Notes: https://bengreenfieldlife.com/sisson2026 

In this episode with Mark Sisson, you'll discover why VO2 Max may be overrated as the gold standard for longevity, and why chasing it cost Mark 32 pounds of muscle and the real-world function that actually matters. You'll explore his "Old Man Olympics" framework: a decathlete's approach to fitness at 72, spanning strength, speed, balance, and endurance. You'll also get his take on cold plunging, alcohol, biohacking, AI, and find out why foot health may be the single most overlooked lever in your longevity toolkit, from bunions to glute activation to big toe function.

Mark Sisson ignited the ancestral health movement with Mark's Daily Apple and The Primal Blueprint, popularized keto and intermittent fasting with The Keto Reset Diet and Two Meals a Day, and sold Primal Kitchen to Kraft Heinz for $200M. He now runs Peluva, a toe-separated shoe company built around restoring foot strength and healthy gait, and is the author of Born to Walk.

👉 Get 10% off Peluva shoes with code BGREENFIELD at bengreenfieldlife.com/peluva.

Episode Sponsors:

Just Thrive: The Just Thrive Gut Essentials Bundle pairs a probiotic clinically proven to arrive 100% alive in your gut with Digestive Bitters, a blend of 12 science-backed herbs. Visit justthrivehealth.com/BEN and save 20% with promo code BEN, or get a full refund if you don't notice a difference.

Timeline: Give your cells new life with Mitopure, which unlocks a precise dose of Urolithin A and promotes healthy aging. Mitopure starts at $79 at timeline.com/BEN.

TruDiagnostic: Advanced at-home epigenetic testing measuring over a million biomarkers. Visit TruDiagnostic.com and use code BEN20 for 20% off.

ULTRA: A clean, nicotine-free, caffeine-free pouch delivering smooth, sustained energy using clinically backed nootropics and adaptogens. Visit takeultra.com and use code BENGREENFIELD for 15% off.

BlockBlueLight: Flicker-free, ultra-low EMF, circadian-friendly BioLights with three modes to support natural rhythms and sleep quality. Get 10% off at blockbluelight.com/Ben (discount auto-applied at checkout).

Qualia Stem Cell: Science-backed stem cell support taken just four days per month. Visit qualialife.com/boundless and use code BOUNDLESS for 15% off.

Full Show Notes: <a href="https://bengreenfieldlife.com/sisson2026">https://bengreenfieldlife.com/sisson2026</a>&nbsp;
In this episode with <a href="https://www.instagram.com/marksissonprimal/">Mark Sisson</a>, you'll discover why VO2 Max may be overrated as the gold standard for longevity, and why chasing it cost Mark 32 pounds of muscle and the real-world function that actually matters. You'll explore his "Old Man Olympics" framework: a decathlete's approach to fitness at 72, spanning strength, speed, balance, and endurance. You'll also get his take on cold plunging, alcohol, biohacking, AI, and find out why foot health may be the single most overlooked lever in your longevity toolkit, from bunions to glute activation to big toe function.
Mark Sisson ignited the ancestral health movement with <a href="https://www.instagram.com/marksdailyapple/">Mark's Daily Apple </a>and <a href="https://amzn.to/4fiN0mk">The Primal Blueprint</a>, popularized keto and intermittent fasting with <a href="https://amzn.to/4tAiqbA">The Keto Reset Diet </a>and <a href="https://amzn.to/3RnQEBv">Two Meals a Day</a>, and sold Primal Kitchen to Kraft Heinz for $200M. He now runs <a href="https://bengreenfieldlife.com/peluva">Peluva</a>, a toe-separated shoe company built around restoring foot strength and healthy gait, and is the author of Born to Walk.
👉 Get 10% off Peluva shoes with code BGREENFIELD at <a href="https://bengreenfieldlife.com/peluva">bengreenfieldlife.com/peluva</a>.
Episode Sponsors:
<a href="https://justthrivehealth.com/BEN">Just Thrive</a>: The Just Thrive Gut Essentials Bundle pairs a probiotic clinically proven to arrive 100% alive in your gut with Digestive Bitters, a blend of 12 science-backed herbs. Visit <a href="http://justthrivehealth.com/BEN">justthrivehealth.com/BEN</a> and save 20% with promo code BEN, or get a full refund if you don't notice a difference.
<a href="http://timeline">Timeline</a>: Give your cells new life with Mitopure, which unlocks a precise dose of Urolithin A and promotes healthy aging. Mitopure starts at $79 at <a href="http://timeline.com/BEN">timeline.com/BEN</a>.
<a href="https://bengreenfieldfitness.com/trudiagnostictest">TruDiagnostic</a>: Advanced at-home epigenetic testing measuring over a million biomarkers. Visit <a href="https://bengreenfieldfitness.com/trudiagnostictest">TruDiagnostic.com</a> and use code BEN20 for 20% off.
<a href="https://bengreenfieldlife.com/ultra">ULTRA</a>: A clean, nicotine-free, caffeine-free pouch delivering smooth, sustained energy using clinically backed nootropics and adaptogens. Visit <a href="http://takeultra.com">takeultra.com</a> and use code BENGREENFIELD for 15% off.
<a href="http://blockbluelight.com/Ben">BlockBlueLight</a>: Flicker-free, ultra-low EMF, circadian-friendly BioLights with three modes to support natural rhythms and sleep quality. Get 10% off at <a href="http://blockbluelight.com/Ben">blockbluelight.com/Ben</a> (discount auto-applied at checkout).
<a href="https://qualialife.com/boundless">Qualia Stem Cell</a>: Science-backed stem cell support taken just four days per month. Visit <a href="http://qualialife.com/boundless">qualialife.com/boundless</a> and use code BOUNDLESS for 15% off.

Is VO2 Max "Overrated"? (& What To Focus On Instead), Old Man Olympics, Big Toe Health & More With Mark Sisson

Full Show Notes: https://bengreenfieldlife.com/emfguypodcast 

In this fascinating episode, Nick Pineault, also known as “The EMF Guy,” breaks down the latest science on radiofrequency radiation, including findings from the National Toxicology Program, the WHO classification of EMFs, and emerging evidence linking device exposure to oxidative stress and reduced sperm health. The conversation also highlights why current safety standards may not reflect real-world, long-term exposure.

You’ll also discover the concept of “body burden,” which is the accumulation of heavy metals, mycotoxins, and environmental toxins that can build up silently over time. Nick shares his own experience discovering high levels of lead, mercury, and mold toxins despite being physically fit, along with the changes he noticed after addressing detoxification through sauna therapy, oxygen cycling, and chelation. 

If you’re dealing with brain fog, low energy, or unexplained symptoms, this episode connects the dots between modern environmental exposures, from EMFs to microplastics, and how they may be influencing your overall health.

Nick Pineault is an investigative health advocate, author, and educator. He is the author of The Non-Tinfoil Guideto EMFsand has spent over a decade researching the health effects of electromagnetic fields and modern environmental exposures. His work focuses on translating complex scientific data into practical strategies for reducing risk in a technology-driven world.

He is also the creator of the documentary Body Burden, which explores the hidden accumulation of toxins in the human body and the emerging field of environmental medicine. 

👉You can sign up to stream Body Burden for free here. 

For additional insights, you can listen to my previous episode with Nick below: 

The Non-Tinfoil Guide to EMFs: How to Fix Our Stupid Use of Technology (& The Real Research On WiFi Health, Cell Phones, Dirty Electricity & More!) 

Episode Sponsors

Young Goose: To experience the transformative power of Young Goose's cutting-edge skincare products, visit younggoose.com and use code BGF10 at checkout to enjoy a 10% discount on your order.

BIOptimizers MassZymes: MassZymes is a powerful best-in-class enzyme supplement that improves digestion, reduces gas and bloating, and provides relief from constipation. Go to bioptimizers.com/ben and use code BEN15 for 15% off your order.

ZBiotics Pre-Alcohol Probiotic: The world's first genetically engineered probiotic that helps break down the toxic byproduct of alcohol, Zbiotics Pre-Alcohol allows you to enjoy your night out and feel great the next day. Order with the confidence of a 100% money-back guarantee and 15% off your first order at zbiotics.com/BEN15.

Fatty15: Fatty15 is on a mission to optimize your C15:0 levels and help you live healthier, longer. You can get an additional 15% off their 90-day subscription Starter Kit by going to fatty15.com/BEN and using code BEN at checkout.

Full Show Notes: <a href="https://bengreenfieldlife.com/emfguypodcast">https://bengreenfieldlife.com/emfguypodcast</a>&nbsp;
In this fascinating episode, Nick Pineault, also known as &ldquo;<a href="https://theemfguy.com/">The EMF Guy</a>,&rdquo; breaks down the latest science on radiofrequency radiation, including findings from the National Toxicology Program, the WHO classification of EMFs, and emerging evidence linking device exposure to oxidative stress and reduced sperm health. The conversation also highlights why current safety standards may not reflect real-world, long-term exposure.
You&rsquo;ll also discover the concept of &ldquo;body burden,&rdquo; which is the accumulation of heavy metals, mycotoxins, and environmental toxins that can build up silently over time. Nick shares his own experience discovering high levels of lead, mercury, and mold toxins despite being physically fit, along with the changes he noticed after addressing detoxification through sauna therapy, oxygen cycling, and chelation.&nbsp;
If you&rsquo;re dealing with brain fog, low energy, or unexplained symptoms, this episode connects the dots between modern environmental exposures, from EMFs to microplastics, and how they may be influencing your overall health.
Nick Pineault is an investigative health advocate, author, and educator. He is the author of <a href="https://amzn.to/4nehvvM">The Non-Tinfoil Guide to EMFs</a> and has spent over a decade researching the health effects of electromagnetic fields and modern environmental exposures. His work focuses on translating complex scientific data into practical strategies for reducing risk in a technology-driven world.
He is also the creator of the documentary <a href="https://bengreenfieldlife.com/bodyburden">Body Burden</a>, which explores the hidden accumulation of toxins in the human body and the emerging field of environmental medicine.&nbsp;
👉<a href="https://bengreenfieldlife.com/bodyburden">You can sign up to stream Body Burden for free here. </a>&nbsp;
For additional insights, you can listen to my previous episode with Nick below:&nbsp;
<a href="https://bengreenfieldlife.com/podcast/biohacking-podcasts/the-real-research-on-wifi-health-cell-phones-dirty-electricity-more/">The Non-Tinfoil Guide to EMFs: How to Fix Our Stupid Use of Technology (&amp; The Real Research On WiFi Health, Cell Phones, Dirty Electricity &amp; More!)</a>&nbsp;
Episode Sponsors
<a href="https://bengreenfieldlife.com/younggoosepodcastads">Young Goose:</a> To experience the transformative power of Young Goose's cutting-edge skincare products, visit <a href="https://bengreenfieldlife.com/younggoosepodcastads">younggoose.com</a> and use code BGF10 at checkout to enjoy a 10% discount on your order.
<a href="https://bioptimizers.com/ben">BIOptimizers MassZymes:</a> MassZymes is a powerful best-in-class enzyme supplement that improves digestion, reduces gas and bloating, and provides relief from constipation. Go to<a href="http://bioptimizers.com/ben"> bioptimizers.com/ben</a> and use code BEN15 for 15% off your order.
<a href="http://zbiotics.com/BEN">ZBiotics Pre-Alcohol Probiotic</a>: The world's first genetically engineered probiotic that helps break down the toxic byproduct of alcohol, Zbiotics Pre-Alcohol allows you to enjoy your night out and feel great the next day. Order with the confidence of a 100% money-back guarantee and 15% off your first order at<a href="http://zbiotics.com/BEN15"> zbiotics.com/BEN15</a>.
<a href="http://fatty15.com/BEN">Fatty15:</a> Fatty15 is on a mission to optimize your C15:0 levels and help you live healthier, longer. You can get an additional 15% off their 90-day subscription Starter Kit by going to<a href="http://fatty15.com/BEN"> fatty15.com/BEN</a> and using code BEN at checkout.

Is Doping an Obstacle: Spartan World Championship Exclusive

In 1 playlist(s)

Boundless Life

Social links

Follow podcast

Recent clips