Full show notes: BenGreenfieldLife.com/jaspr3

In this episode, repeat guest Michael Feldstein, founder of Jaspr, joins me in my Idaho studio to make the case that synthetic fragrances are the new secondhand smoke. You’ll hear why the air freshener in your Uber may be doing more harm than you think, how fragrance dulls your sense of smell and even your digestion, and what Michael does to keep his air clean on the road when he can’t ship a Jaspr ahead of him.

We also dig into the research tying air quality to cognitive performance, from MLB umpires to chess players to the healthy buildings work of Harvard’s Dr. Joseph Allen, plus what Michael thinks about stacking nasal strips with clean air. You’ll learn how he built Kindling Academy in Austin to be the healthiest school in America, the humidity range that keeps mold and bacteria in check, how to upgrade your car’s cabin filter, and why gyms and dental offices have some of the worst air quality you’ll breathe. We close with an early Black Friday deal on the Jaspr Air Scrubber.

You can save $350 off your Jaspr Air Scrubber with code BEN through the end of the year.

Episode Sponsors:

Dr. Murray Natural Products – ThymoQuin®: A clinically researched black seed oil formulated to support healthy cortisol levels and improve resilience to everyday stress. Visit doctormurray.com/ben and use code BEN25 for 25% off all Dr. Murray Natural Products.

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.

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 claim a 10% discount on your order.

Orion Sleep: Orion is a smart sleep system that fits over your existing mattress and adjusts your bed’s temperature to help optimize sleep quality and recovery. Get 15% off at OrionSleep.com/Boundless.

TruDiagnostic: TruDiagnostic is an advanced at-home health test that uses epigenetic analysis to measure over a million biomarkers, giving you personalized insights into your aging, energy, and overall health. Visit TruDiagnostic.com and use code BEN20 for 20% off.

Active Skin Repair: Active Skin Repair uses hypochlorous acid, a molecule your body naturally produces, to support skin repair and defense without harsh chemicals. Go to ActiveSkinRepair.com and use code BEN for 20% off, or find it on Amazon and at your local CVS.

See omnystudio.com/listener for privacy information.

Full show notes: BenGreenfieldLife.com/prologue

In this episode, stem cell scientist Dr. Yaron Fuchs reveals how an accidental lab finding, a compound that turned every hair white, led to Prologue, a peptide serum built to help you keep the natural hair color you still have. You’ll hear why hair goes gray in the first place, how the stem cells that run your pigment “factory” decide whether to live or die, and how his team shrank a large protein into six peptides small enough to reach the follicle.

You’ll also learn the surprising story behind finasteride, from castrated men who never went bald to a rare mutation in the Dominican Republic, and why hair loss medicine has barely advanced in decades. We dig into what his clinical study found, when to start treatments if you want to stay ahead of your first grays, and whether a red light helmet has any real benefits for hair. You’ll also hear how I fit the serum into my morning routine, and how Dr. Fuchs’ lab can grow and test your own hair follicles from a urine sample.

You can claim your invite to the Prologue Hair Pigment Longevity Serum presale here (limited to 500 invites).

My new book is out now, and you can order Precepts: A 100-Day Guide to Living Fully, here.

Episode Sponsors:

BON CHARGE: BON CHARGE is a holistic wellness brand whose products can help you sleep better, recover faster, balance hormones, and so much more. Go to boncharge.com/GREENFIELD and use coupon code GREENFIELD to save 15%.

Hiya: Give your kids the full-body nourishment they need to grow into healthy adults. Get 50% off your first order of their best-selling children’s vitamin. To claim this deal, you must go to hiyahealth.com/BEN (it is not available on their regular website).

Just Thrive: The Just Thrive Gut Essentials Bundle pairs a probiotic clinically proven to arrive 100% alive in your gut with Digestive Bitters to support digestion. Visit justthrivehealth.com/BEN and save 20% with promo code BEN.

Dr. Murray Natural Products – ThymoQuin®: ThymoQuin® is a clinically researched black seed oil formulated to support healthy cortisol levels and improve resilience to everyday stress. Visit doctormurray.com/ben and use code BEN25 for 25% off all Dr. Murray Natural Products.

BIOptimizers Magnesium Breakthrough Advanced 10: BIOptimizers’ newest magnesium formula combines 10 bioavailable forms of magnesium to support sleep, recovery, stress, and metabolic health. Go to bioptimizers.com/ben and use code ben15 for 15% off any order.

Nuchido: Support healthy aging at the cellular level with Nuchido TIME+, a science-backed supplement designed to optimize your body’s NAD metabolism. Visit BenGreenfieldLife.com/Nuchido and use code BEN20 to save 20% on your order.

See omnystudio.com/listener for privacy information.

Full show notes: BenGreenfieldLife.com/rory

In this episode, Rory Vaden, author of Take the Stairs and cofounder of Brand Builders Group, tackles why people who know exactly what to do still don’t do it, and why the problem is rarely a lack of information. You’ll hear the three types of procrastination, why discipline has less to do with willpower than with vision, and how to multiply your time by spending it on things that create more time tomorrow.

You’ll also learn where biohacking crosses from smart tools into shortcuts, why buffalo run straight into storms, and the return-on-time math behind the AI tool I built to tame my WhatsApp groups, along with why automating chaos only creates chaos faster. We dig into overloaded morning routines, the social pressure of living in an escalator world, and the photo of my 80-year-old self that hangs on my wall, plus how to grab Rory’s Wealthy and Well-Known audiobook for free.

Episode Sponsors:

Quantum Upgrade: Recent research has revealed that the Quantum Upgrade was able to increase ATP production by 20 to 25% in human cells. Unlock a 15-day free trial with the code BEN15 at quantumupgrade.io.

Cacao Bliss: Cacao Bliss combines 100% ceremonial-grade cacao with organic turmeric, cinnamon, MCTs, and monk fruit for a rich, creamy chocolate drink with no added sugar. Visit TryCacaoBliss.com/BEN to get 90 Servings of Cacao Bliss & 6 FREE Gifts.

kēpos: kēpos is an advanced daily prebiotic based on prebiotics originally discovered in human milk, designed to support beneficial gut bacteria and overall gut health. Visit trykepos.com/BEN for 47% off your first order plus $62 in free gifts, with a 30-day money-back guarantee.

SLAMIT Focus: SLAMIT Focus is a nine-in-one energy and electrolyte drink mix built around paraxanthine, a caffeine metabolite studied for its potential to support focus, reaction time, and memory. Use code BEN20 for 20% off at SLAMIT.com.

Timeline: Give your cells new life with Mitopure, which unlocks a precise dose of the rare Urolithin A molecule and promotes healthy aging. Mitopure now starts at $79 when you go to timeline.com/BEN.

See omnystudio.com/listener for privacy information.