Full Show Notes: https://bengreenfieldlife.com/article/newsletter-1

Writing a book is a lot like childbirth—exhausting, and not something you rush back into the moment it’s over.

I’ve never given birth, but I have written several books—and after finishing Boundless, I wasn’t too eager to jump straight into that process again. Until recently.

There are just too many health myths wasting your time, energy, and attention—especially around supplements, cold and heat exposure, sleep, fasting, seed oils, red meat, carbohydrates, psychedelics, biohacking, and the modern obsession with living forever.

So over the coming months, I’m going to tackle these types of topics through a weekly newsletter, article, and video series, which will eventually be crafted into my next book.

If something resonates, let me know. If something falls flat, tell me. And if there’s a topic that deserves a deeper dive, point me there.

Head to https://bengreenfieldlife.com/article/newsletter-1/ for today’s article, and drop any other feedback in the comments, including topics you think I should address in the book!

Full Show Notes: <a href="https://bengreenfieldlife.com/article/newsletter-1">https://bengreenfieldlife.com/article/newsletter-1</a>
Writing a book is a lot like childbirth&mdash;exhausting, and not something you rush back into the moment it&rsquo;s over.
I&rsquo;ve never given birth, but I have written several books&mdash;and after finishing Boundless, I wasn&rsquo;t too eager to jump straight into that process again. Until recently.
There are just too many health myths wasting your time, energy, and attention&mdash;especially around supplements, cold and heat exposure, sleep, fasting, seed oils, red meat, carbohydrates, psychedelics, biohacking, and the modern obsession with living forever.
So over the coming months, I&rsquo;m going to tackle these types of topics through a weekly newsletter, article, and video series, which will eventually be crafted into my next book.
If something resonates, let me know. If something falls flat, tell me. And if there&rsquo;s a topic that deserves a deeper dive, point me there.
Head to https://bengreenfieldlife.com/article/newsletter-1/ for today&rsquo;s article, and drop any other feedback in the comments, including topics you think I should address in the book!

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

Health Myths That Waste Your Time: Supplements, Seed Oils, Cold Therapy, and More

Full show notes: https://bengreenfieldlife.com/tim2026

In this episode with repeat guest Tim Gray, you'll hear why the smartest biohackers are now removing more than they are adding, what paying attention to microplastics and environmental toxins in your own home and blood actually reveals, and why sulforaphane is making a comeback as a potential microplastic clearance tool. You'll also get a breakdown of the most interesting technologies coming to the Health Optimisation Summit this September, now in its first-ever three-day format, from hydrogen inhalation and bio-energy stimulation to hands-free vagus nerve stimulation, PEMF, STEMREGEN, and a full-body MRI trailer parked outside the venue. 

Tim Gray is the founder and CEO of the Health Optimisation Summit, one of the world's largest health and longevity events, now expanding to multiple international locations. Known globally as The Health Community Guy, he is also the host of the Health Optimisation Podcast, an early-stage investor in breakthrough wellness brands, and the founder of London's first private hyperbaric oxygen clinic.

Use code BEN for 10% off HOS registration at bengreenfieldlife.com/HOS2026. 

Episode Sponsors:

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

Troscriptions: A buccal troche delivery system that bypasses digestion to deliver pharmaceutical-grade compounds directly through your cheek mucosa for faster onset and higher bioavailability. Visit troscriptions.com/BEN or use code BEN for 10% off your first order.

Organifi Shilajit Gummies: Pure Himalayan Shilajit in a convenient gummy. Get 20% off at organifi.com/Ben.

Qualia Stem Cell: A science-backed supplement that supports your body's natural repair system by enhancing stem cell function, 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/tim2026">https://bengreenfieldlife.com/tim2026</a>
In this episode with repeat guest <a href="https://www.instagram.com/timbiohacker/?hl=en">Tim Gray</a>, you'll hear why the smartest biohackers are now removing more than they are adding, what paying attention to microplastics and environmental toxins in your own home and blood actually reveals, and why sulforaphane is making a comeback as a potential microplastic clearance tool. You'll also get a breakdown of the most interesting technologies coming to the <a href="https://bengreenfieldlife.com/HOS2026">Health Optimisation Summit</a> this September, now in its first-ever three-day format, from hydrogen inhalation and bio-energy stimulation to hands-free vagus nerve stimulation, PEMF, <a href="https://bengreenfieldlife.com/stemregen">STEMREGEN</a>, and a full-body MRI trailer parked outside the venue.&nbsp;
Tim Gray is the founder and CEO of the <a href="https://bengreenfieldlife.com/HOS2026">Health Optimisation Summit</a>, one of the world's largest health and longevity events, now expanding to multiple international locations. Known globally as The Health Community Guy, he is also the host of the Health Optimisation Podcast, an early-stage investor in breakthrough wellness brands, and the founder of London's first private hyperbaric oxygen clinic.
Use code BEN for 10% off HOS registration at <a href="https://bengreenfieldlife.com/HOS2026">bengreenfieldlife.com/HOS2026</a>.&nbsp;
Episode Sponsors:
<a href="http://manukora.com/ben">Manukora</a>: Honey with superpowers. Head to <a href="https://manukora.com/ben">manukora.com/ben</a> or use code BEN to get $25 off your Starter Kit.
<a href="http://troscriptions.com/BEN">Troscriptions</a>: A buccal troche delivery system that bypasses digestion to deliver pharmaceutical-grade compounds directly through your cheek mucosa for faster onset and higher bioavailability. Visit <a href="https://troscriptions.com/BEN">troscriptions.com/BEN</a> or use code BEN for 10% off your first order.
<a href="http://organifi.com/Ben">Organifi Shilajit Gummies</a>: Pure Himalayan Shilajit in a convenient gummy. Get 20% off at <a href="https://organifi.com/Ben">organifi.com/Ben</a>.
<a href="https://qualialife.com/boundless">Qualia Stem Cell</a>: A science-backed supplement that supports your body's natural repair system by enhancing stem cell function, taken just four days per month. Visit <a href="https://qualialife.com/boundless">qualialife.com/boundless </a>and use code BOUNDLESS for 15% off.

Biohacking Gadgets You’ve Never Heard Of (& A Preview of The World’s TOP Health Optimization Event) With Tim Gray

Full show notes: https://bengreenfieldlife.com/jaspr2026

In this replay episode, Mike Feldstein makes the case that clean air may be the single most overlooked variable in your health, sleep, and cognitive performance stack.

Mike draws on firsthand experience from the LA wildfires (testing air, soil, and water after thousands of homes burned), revealing why most standard air purifiers, water tests, and insurance claims completely miss the real threat. You'll also discover how clean air has eliminated snoring and resolved sleep apnea symptoms in real households, what cognitive research on chess grandmasters reveals about pollution and decision-making, and how Mike is building Kindling Academy, a school designed from scratch around healthy air, light, toxin-free materials, and community wellness.

Mike Feldstein is the founder of Jaspr, an air purifier company built on the conviction that most people are sleeping, working, and raising children in air that quietly undermines their health. With a background in wildfire restoration and indoor air quality consulting, he channeled years of hands-on field experience into creating the Jaspr Air Scrubber, a unit with a 4-pound filter roughly 10 times heavier than most competitors, built for real-world performance rather than lab benchmarks. Jaspr collaborates with building biologists, air scientists, and health practitioners to deliver practical guidance on indoor environments.

Episode Sponsors

TruDiagnostic: An advanced at-home epigenetic test measuring over a million biomarkers for personalized insights into aging, energy, and overall health. Use code BEN20 for 20% off at TruDiagnostic.com.

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

Active Skin Repair: Powered by hypochlorous acid for skin repair and defense without harsh chemicals. Use code BEN for 20% off at ActiveSkinRepair.com, or find it on Amazon and at CVS.

Pendulum: Metabolic Daily is a multi-strain probiotic that improves metabolism, reduces sugar cravings, and sustains energy. Use code BEN for 20% off your first month at PendulumLife.com.

Xtend Life: Tocotrienols Vitamin E, formulated without excess alpha-tocopherol and backed by 26 years of expertise in New Zealand, for cardiovascular, brain, and healthy aging support. Use code GREENFIELD for 15% off at xtendlife.com/benschoice.

Full show notes: <a href="https://bengreenfieldlife.com/jaspr2026">https://bengreenfieldlife.com/jaspr2026</a>
In this replay episode,<a href="https://www.instagram.com/michaelfeldstein_/"> Mike Feldstein</a> makes the case that clean air may be the single most overlooked variable in your health, sleep, and cognitive performance stack.
Mike draws on firsthand experience from the LA wildfires (testing air, soil, and water after thousands of homes burned), revealing why most standard air purifiers, water tests, and insurance claims completely miss the real threat. You'll also discover how clean air has eliminated snoring and resolved sleep apnea symptoms in real households, what cognitive research on chess grandmasters reveals about pollution and decision-making, and how Mike is building<a href="https://kindling.academy/"> Kindling Academy</a>, a school designed from scratch around healthy air, light, toxin-free materials, and community wellness.
Mike Feldstein is the founder of<a href="https://bengreenfieldlife.com/jaspr"> Jaspr</a>, an air purifier company built on the conviction that most people are sleeping, working, and raising children in air that quietly undermines their health. With a background in wildfire restoration and indoor air quality consulting, he channeled years of hands-on field experience into creating the<a href="https://bengreenfieldlife.com/jaspr"> Jaspr Air Scrubber</a>, a unit with a 4-pound filter roughly 10 times heavier than most competitors, built for real-world performance rather than lab benchmarks. Jaspr collaborates with building biologists, air scientists, and health practitioners to deliver practical guidance on indoor environments.
Episode Sponsors
<a href="https://bengreenfieldfitness.com/trudiagnostictest">TruDiagnostic</a>: An advanced at-home epigenetic test measuring over a million biomarkers for personalized insights into aging, energy, and overall health. Use code BEN20 for 20% off at<a href="https://bengreenfieldfitness.com/trudiagnostictest"> TruDiagnostic.com</a>.
<a href="http://quantumupgrade.io/">Quantum Upgrade</a>: Recent research showed 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="https://activeskinrepair.com">Active Skin Repair</a>: Powered by hypochlorous acid for skin repair and defense without harsh chemicals. Use code BEN for 20% off at<a href="https://activeskinrepair.com"> ActiveSkinRepair.com</a>, or find it on Amazon and at CVS.
<a href="https://bengreenfieldlife.com/metabolicdaily">Pendulum</a>: Metabolic Daily is a multi-strain probiotic that improves metabolism, reduces sugar cravings, and sustains energy. Use code BEN for 20% off your first month at<a href="https://bengreenfieldlife.com/metabolicdaily"> PendulumLife.com</a>.
<a href="http://www.xtendlife.com/benschoice">Xtend Life</a>: Tocotrienols Vitamin E, formulated without excess alpha-tocopherol and backed by 26 years of expertise in New Zealand, for cardiovascular, brain, and healthy aging support. Use code GREENFIELD for 15% off at<a href="http://www.xtendlife.com/benschoice"> xtendlife.com/benschoice</a>.

Could This ONE Simple Change Fix Your Sleep Forever?, Making Schools Healthy Again, and Why Your Air Filter Probably DOESN’T Work Right With Mike Feldstein.

Full show notes:https://bengreenfieldlife.com/marapodcast

In this episode, you'll hear the origin story of Mara Labs, a company built around sulforaphane, the active compound found in broccoli that has been studied across thousands of papers covering almost every major chronic disease, and why most people aren't actually getting it from their broccoli supplements. You will discover why the way your broccoli supplement is made determines whether any of it reaches your cells, what dose of the active compound moves the needle on inflammation, detox, and cellular defense, and how a single capsule compares to eating five pounds of adult broccoli a day. You'll also hear something that has not been discussed publicly before: a pilot study showing that this same compound can trigger your cells to release microplastics, those synthetic particles now found in human blood, lungs, and breast tissue, and push them out through your digestive system.

David Roberts is the co-founder of Mara Labs. After his wife Mara was diagnosed with breast cancer passed away in 2017, David channeled his experience into building a supplement company grounded in clinical science rather than ingredient trends. Dr. John Gildea is Chief Science Officer and co-founder, with a PhD in molecular biology and over 20 years studying the Nrf2 pathway at the University of Virginia. Author of more than 60 peer-reviewed publications, he developed the stabilization method that made shelf-stable sulforaphane possible and has since led research on sulforaphane's effects on microplastics and cancer stem cells.

For the next week, save 25% off all Mara Labs products using code BEN at bengreenfieldlife.com/maralabs. After June 20th, the code returns to the standard 15% off.

Episode Sponsors:

Our Place: Upgrade your kitchen with Our Place and ditch the forever chemicals for good. Visit fromourplace.com/ben and use code BEN for 10% off.

Formula IQ: Recuperate IQ is a copper supplement that supports mitochondrial energy, iron balance, and metabolic health with bioavailable copper and key cofactors. Try it at formulaiq.com and use code BEN for 10% off.

Kettle & Fire: You can invest in high-quality ingredients and still miss one of the biggest levers in your kitchen: what you cook with. Kettle & Fire’s Beef Tallow keeps it simple with one ingredient that delivers better browning, crispier texture, and a higher smoke point. Head to kettleandfire.com/BEN25 and use code BEN25 for 25% off.

Xtend Life: Most vitamin E supplements contain only alpha-tocopherol, but the more compelling research points to tocotrienols for cardiovascular, brain, and healthy aging support. Xtendlife's Tocotrienols Vitamin E is backed by over 26 years of formulation expertise. Visit xtendlife.com/benschoice and use code GREENFIELD for 15% off. 

Anthros: You can train hard and still undo a lot of that progress by sitting for the next eight hours. Anthros takes a different approach, with a Precision Posture System so your spine naturally aligns. Go to anthros.com and use code BEN for an exclusive $200 discount.

Full show notes: <a href="https://bengreenfieldlife.com/marapodcast">https://bengreenfieldlife.com/marapodcast</a>
In this episode, you'll hear the origin story of <a href="https://bengreenfieldlife.com/maralabs">Mara Labs</a>, a company built around sulforaphane, the active compound found in broccoli that has been studied across thousands of papers covering almost every major chronic disease, and why most people aren't actually getting it from their broccoli supplements. You will discover why the way your broccoli supplement is made determines whether any of it reaches your cells, what dose of the active compound moves the needle on inflammation, detox, and cellular defense, and how a single capsule compares to eating five pounds of adult broccoli a day. You'll also hear something that has not been discussed publicly before: <a href="http://jonbrudvig.substack.com/p/first-evidence-of-microplastic-mobilization">a pilot study</a> showing that this same compound can trigger your cells to release microplastics, those synthetic particles now found in human blood, lungs, and breast tissue, and push them out through your digestive system.
<a href="https://www.instagram.com/themaralabs/">David Roberts</a> is the co-founder of&nbsp;<a href="https://bengreenfieldlife.com/maralabs">Mara Labs</a>. After his wife Mara was diagnosed with breast cancer passed away in 2017, David channeled his experience into building a supplement company grounded in clinical science rather than ingredient trends.&nbsp;<a href="https://mara-labs.com/pages/about-dr-john-gildea-phd">Dr. John Gildea</a> is Chief Science Officer and co-founder, with a PhD in molecular biology and over 20 years studying the Nrf2 pathway at the University of Virginia. Author of more than 60 peer-reviewed publications, he developed the stabilization method that made shelf-stable sulforaphane possible and has since led research on sulforaphane's effects on microplastics and cancer stem cells.
For the next week, save 25% off all <a href="https://bengreenfieldlife.com/maralabs">Mara Labs</a> products using code BEN at <a href="https://bengreenfieldlife.com/maralabs">bengreenfieldlife.com/maralabs</a>. After June 20th, the code returns to the standard 15% off.
Episode Sponsors:
<a href="https://fromourplace.com/ben">Our Place:</a> Upgrade your kitchen with Our Place and ditch the forever chemicals for good. Visit <a href="https://fromourplace.com/ben">fromourplace.com/ben</a> and use code BEN for 10% off.
<a href="https://bengreenfieldlife.com/formulaiq">Formula IQ:</a> Recuperate IQ is a copper supplement that supports mitochondrial energy, iron balance, and metabolic health with bioavailable copper and key cofactors. Try it at <a href="http://formulaiq.com">formulaiq.com</a> and use code BEN for 10% off.
<a href="http://kettleandfire.com/BEN25">Kettle &amp; Fire:</a> You can invest in high-quality ingredients and still miss one of the biggest levers in your kitchen: what you cook with. Kettle &amp; Fire&rsquo;s Beef Tallow keeps it simple with one ingredient that delivers 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.
<a href="https://www.xtendlife.com/benschoice">Xtend Life:</a> Most vitamin E supplements contain only alpha-tocopherol, but the more compelling research points to tocotrienols for cardiovascular, brain, and healthy aging support. Xtendlife's Tocotrienols Vitamin E is backed by over 26 years of formulation expertise. Visit <a href="http://www.xtendlife.com/benschoice">xtendlife.com/benschoice</a> and use code GREENFIELD for 15% off.&nbsp;
<a href="https://bengreenfieldlife.com/anthros">Anthros:</a> You can train hard and still undo a lot of that progress by sitting for the next eight hours. Anthros takes a different approach, with a Precision Posture System so your spine naturally aligns. Go to&nbsp;<a href="https://bengreenfieldlife.com/anthros">anthros.com</a> and use code BEN for an exclusive $200 discount.

Health Myths That Waste Your Time: Supplements, Seed Oils, Cold Therapy, and More

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