Episode #185: Is Cortisol Good Or Bad?

Full Show Notes: https://bengreenfieldlife.com/lnamie/ Low libido... brain fog... and decreased muscle mass — many women face these issues without realizing they could be linked to hormone imbalances, particularly low testosterone levels. As you navigate through perimenopause or menopause, the overlapping symptoms can be confusing and frustrating, making it difficult to pinpoint the root cause and find effective solutions. In this episode, Dr. Amie Hornaman and I dive deep into the often-overlooked aspects of hormone management, with a special focus on testosterone's pivotal role in women's health. From understanding the complex interactions between testosterone and thyroid levels to exploring the best methods for hormone testing, you'll receive a comprehensive guide to optimizing your hormone balance. You'll also gain insights into various testosterone replacement methods, strategies to manage side effects, and tips on integrating peptide therapy for enhanced recovery and growth hormone levels. Whether you're seeking to boost your libido, enhance cognitive function, or maintain muscle mass, this episode offers practical advice to help you achieve your health goals. Dr. Amie is a certified functional medicine practitioner, a women's hormone specialist, and has a doctorate in clinical nutrition. Dr. Amie helps patients navigate thyroid and hormone supplements and provides thyroid support resources. Dr. Amie's patients are located around the world, including the US, UK, and Australia, and she uses telehealth to help thousands of patients each year. Episode Sponsors: Ketone-IQ: Ketone-IQ delivers science-backed performance fuel that increases power output by 19%, reduces fatigue by 10%, and naturally boosts EPO production for better oxygen delivery—trusted by elite athletes like Jon Jones and Olympic champions. Save 30% on your subscription plus get a free gift with your second shipment at Ketone.com/BENG. Muse: Muse S Athena combines clinical-grade EEG and fNIRS technology to train your brain in real time while tracking sleep with 86% expert-level accuracy. Get 15% off at choosemuse.com/BENGREENFIELD or use code BENGREENFIELD at checkout. Pique: Pique Teas is where plants and science intersect to produce teas and supplements of unrivaled efficacy, purity, and convenience. Go to Piquelife.com/Ben to get 20% off for life, plus a free starter kit with a rechargeable frother and glass beaker to elevate your ritual. 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. Our Place: Upgrade to Our Place today and say goodbye to forever chemicals in your kitchen. Go to fromourplace.comand enter my code BEN at checkout to receive 10% off sitewide. Boundless Bar: If you’re ready to fuel workouts, sharpen your focus, and support whole-body vitality, grab your Boundless Bars now at boundlessbar.com —and save 10% when you sign up for a Boundless Bar subscription. Want to Hear More from Dr Amie and Other Leading Health Experts?Click Here to Join LIFE Network for FreeSee omnystudio.com/listener for privacy information.

25 Loka 51min

Full Show Notes: https://bengreenfieldlife.com/bluelightpodcast/Daniel Ebbett is a visionary leader in the field of blue light and its effects on human health. As the founder and CEO of BlockBlueLight, a premier global brand for blue and artificial light-blocking products, he has made it his mission to promote and educate the science behind modern phenomena such as digital eye strain and poor sleep, and the connection these have with screen overuse. Through his innovative product range, he champions eye health, sleep quality, and overall well-being. His journey to create BlockBlueLight began with a personal quest to fix his own health issues, including chronic insomnia, eye strain, and migraines, which were caused by his own overuse of electronic devices. Episode Sponsors: Quantum Upgrade: Recent research has revealed that the Quantum Upgrade was able to increase ATP production by a jaw-dropping 20–25% in human cells. Unlock a 15-day free trial with the code BEN15 at quantumupgrade.io. BiOptimizers Magnesium Breakthrough: The 7 essential forms of magnesium included in this full-spectrum serving help you relax, unwind, and turn off your active brain after a long and stressful day so you can rest peacefully and wake up feeling refreshed, vibrant, and alert. Go to bioptimizers.com/ben and use code ben15 for 15% off any order. Organifi Shilajit Gummies: Harness the ancient power of pure Himalayan Shilajit anytime you want with these convenient and tasty gummies. Get them now for 20% off at organifi.com/Ben. BON CHARGE: BON CHARGE is a holistic wellness brand with a wide range of products that naturally address the issues of modern life. Their products can help you sleep better, perform better, recover faster, balance hormones, reduce inflammation, and so much more. Go to boncharge.com/GREENFIELD and use coupon code GREENFIELD to save 15%. LeelaQ: Not only do LeelaQ’s products neutralize EMFs, increase ATP production, optimize HRV, and improve blood flow, but they've been third-party proven to do so in placebo-controlled double-blind studies. Visit leelaq.com and use code BEN10 for 10% off.See omnystudio.com/listener for privacy information.

23 Loka 55min

In this episode, we dive deep into the science and controversy surrounding Quantum Upgrade: systems designed to optimize your energy, recovery, and resilience against modern-day stressors like EMFs and 5G. You’ll hear about fascinating studies involving advanced EEG setups, heart rate variability, ATP production, blood health, and even experiments with pets. The guests break down real research, including placebo-controlled trials and randomized studies, investigating everything from wound healing to parasitic load and spike protein traces. They’ll also tackle skepticism head-on, discussing how quantum technology interacts with your biofield, and how you can personalize your own experience with different settings and frequencies. Philipp von Holtzendorff-Fehling, founder and CEO of Leela Quantum Tech and Quantum Upgrade, is a coach, entrepreneur in the conscious-raising space, and energy healer. In parallel to a successful international business career, he constantly worked through blockages and barriers that had prevented him from fully connecting with his true self. With that, he started to also see energy fields and developed his unique skills as a healer, undergoing two decades of training in shamanic and other energy healing modalities. Ian Mitchell founded Wizard Sciences to create a world-class health and wellness research and development company. His professional background as a leader in health and wellness innovation is at the core of Wizard Sciences. As a research scientist and pharmaceutical consultant, Ian Mitchell is Chief Science Officer at Redbud Brands, Chief Science Advisor at Leela Quantum, and Scientific Advisor at Satori Neuro, contributing to the forefront of wellness technology and healthcare entrepreneurship. Ian is also Polymath in Residence at Ecliptic Capital, a hub for fitness and wellness startups.Full Show Notes: https://bengreenfieldlife.com/podcast/qresearch Episode Sponsors: Truvaga: Balance your nervous system naturally with Truvaga's vagus nerve stimulator. Visit Truvaga.com/Greenfieldand use code GREENFIELD30 to save $30 off any Truvaga device. Calm your mind, focus better, and recover faster in just two minutes. CAROL Bike: The science is clear—CAROL Bike is your ticket to a healthier, more vibrant life. And for a limited time, you can get $100 off yours with the code BEN. Don't wait any longer, join over 25,000 riders and visit carolbike.com/ben today. Just Thrive: For a limited time, you can save 20% off a 90 day bottle of Just Thrive Probiotic and Just Calm at justthrivehealth.com/ben with promo code: BEN. That’s like getting a month for FREE! Take control today with Just Thrive! Manukora: You haven’t tasted or seen honey like this before - so indulge and try some honey with superpowers from Manukora. If you head to manukora.com/ben or use code BEN, you’ll automatically get $25 off your Starter Kit. Boundless Bar: If you’re ready to fuel workouts, sharpen your focus, and support whole-body vitality, grab your Boundless Bars now at boundlessbar.com —and save 10% when you sign up for a Boundless Bar subscription.See omnystudio.com/listener for privacy information.

18 Loka 52min

Brian McMaster is a dynamic entrepreneur, faith-first leader, and lifelong student of health, peak performance, and personal mastery. As Founder and CEO of M&M Quality Solutions, Brian has built the company from the ground up into a trusted logistics and fulfillment partner serving premier health, wellness, and lifestyle brands nationwide. Driven by excellence and grounded in purpose, Brian brings a fearless spirit to both business and life. He’s a 4th-degree black belt in taekwondo, a passionate adventure-seeker, and a dedicated biohacker who is constantly exploring the best ways to optimize mind, body, and spirit. His disciplined daily routine reflects a deep commitment to health and longevity — blending cutting-edge biohacking tools, advanced recovery methods, and spiritual practices to sustain peak physical, mental, and spiritual performance. As a pilot-in-training, At the core, Brian is a devoted husband who credits his wife, Amber, as his anchor — a steady source of love, encouragement, and strength throughout every chapter of his journey.Full Show Notes: https://bengreenfieldlife.com/mcmaster/ Episode Sponsors: LVLUP Health: I trust and recommend LVLUP Health for your peptide needs as they third-party test every single batch of their peptides to ensure you’re getting exactly what you pay for and the results you’re after! Head over to lvluphealth.com/BGL and use code BEN15 for a special discount on their game-changing range of products. BlockBlueLight: BlockBlueLight BioLights are the only lights extensively tested and recommended by building biologist Brian Hoyer as truly flicker-free, ultra-low EMF, and circadian-friendly, with three modes (day, evening, night) that support natural rhythms and optimize sleep quality. Get 10% off your first order at blockbluelight.com/Ben (discount autoapplied at checkout). Apollo: Apollo is a safe and non-invasive wearable that actively improves your sleep. Head over to apolloneuro.com/bengreenfield and use code BENGREENFIELD for $90 off. Boundless Bar: If you’re ready to fuel workouts, sharpen your focus, and support whole-body vitality, grab your Boundless Bars now at boundlessbar.com —and save 10% when you sign up for a Boundless Bar subscription.See omnystudio.com/listener for privacy information.

16 Loka 59min

Gary Brecka is a leading expert in human biology and longevity with over 20 years of experience in biohacking and functional medicine. As the former Chief Human Biologist and co-founder of 10X Health System, he developed innovative wellness protocols that optimize performance and restore balance in the body. Now, through The Ultimate Human brand (you can check out our podcast together here), Gary continues his mission to help people take control of their biology using measurable, science-based methods. Specializing in serum blood and genetic biomarkers, he enhances human performance through personalized nutrition, advanced supplementation, movement protocols, and technologies such as oxygen therapy and red light treatments. Gary works with a hand-picked clinical team of board-certified physicians (M.D.s), Ph.D. researchers, business leaders, functional medicine experts, motivators, and scientists—all united by one mission: to discover and deliver the safest, fastest ways to optimize the mind, body, and spirit through modern science.Full show notes: https://bengreenfieldlife.com/podcast/lngary/ Episode Sponsors: Gameday Men’s Health: Gameday Men's Health offers science-backed, physician-led men's health optimization with personalized protocols for testosterone, peptide therapy, ED treatment, and more—helping you perform at your best whether you're training hard or keeping up with life. Visit gamedaymenshealth.com/bengreenfield for a free testosterone test and consultation at a clinic near you. Timeline Nutrition: Give your cells new life with high-performance products powered by Mitopure, Timeline's powerful ingredient that unlocks a precise dose of the rare Urolithin A molecule and promotes healthy aging. Go to shop.timeline.com/BEN and use code BEN to get 20% off your order. Ketone-IQ: Ketone-IQ delivers science-backed performance fuel that increases power output by 19%, reduces fatigue by 10%, and naturally boosts EPO production for better oxygen delivery—trusted by elite athletes like Jon Jones and Olympic champions. Save 30% on your subscription plus get a free gift with your second shipment at Ketone.com/BENG BEAM Minerals: If you want to up your mineral game, give BEAM Minerals a try. Go to beamminerals.com and use code BEN at checkout for 20% off your order. Quantum Upgrade: Recent research has revealed that the Quantum Upgrade was able to increase ATP production by a jaw-dropping 20–25% in human cells. Unlock a 15-day free trial with the code BEN15 at quantumupgrade.io.See omnystudio.com/listener for privacy information.

11 Loka 1h 14min

In this special live-recorded episode, actor Luke Cook—known for Chilling Adventures of Sabrina and Guardians of the Galaxy Vol. 2—joins me for a raw, unfiltered conversation about what it really means to live well. Recorded during A Boundless Evening at HUME Los Angeles, this fireside chat brings together curiosity, science, and honest reflections on health, performance, and purpose. We start with the rhythms of daily life—how I approach mornings, training, and eating while traveling—and why balance beats perfection. You’ll hear how my cyclical keto approach helps me stay sharp and grounded while still enjoying the moments that matter. From movement habits and fasted training to the little environmental tweaks that keep me active throughout the day, we explore how health can be both sustainable and joyful. We dive into the evolving world of biohacking—cold plunges, nootropics, and stress adaptation—through both skepticism and lived experience. The conversation goes deeper than supplements or science. We reflect on the connection between discipline and creativity, the balance between ambition and family, and why my personal philosophy centers on healthspan, not just lifespan.Full show notes: https://bengreenfieldlife.com/firesidechatla/ Episode Sponsors: Pique: Pique Teas are where plants and science intersect to produce teas and supplements of unrivaled efficacy, purity, and convenience. Go to Piquelife.com/Ben to get 20% off for life, plus a free starter kit with a rechargeable frother and glass beaker to elevate your ritual. Sunlighten: Discover the ultimate efficiency in wellness with the Sunlighten Solo System, a compact, portable far infrared sauna designed to detoxify, reduce stress, improve sleep, and enhance heart health—all while fitting seamlessly into your daily routine. Save $600 or more today and start biohacking your mind, body, and spirit at get.sunlighten.com/ben. Hiya: Give your kids the full-body nourishment they need to grow into healthy adults. I’ve secured a special deal with Hiya on their best-selling children's vitamin—get 50% off your first order today! To claim this deal, you must go to hiyahealth.com/BEN (it is not available on their regular website). Qualia: Qualia Stem Cell combines 15 science-backed ingredients to support stem cell proliferation, migration, and differentiation, so you can heal and repair with a youthfulness that DEFIES your age. Visit qualialife.com/boundless and use code BOUNDLESS for 15% off your order. Organifi Shilajit Gummies: Harness the ancient power of pure Himalayan shilajit anytime you want with these convenient and tasty gummies. Get them now for 20% off at organifi.com/Ben.See omnystudio.com/listener for privacy information.

9 Loka 45min

In this episode with Meagan Lindquist, you’ll discover the world of AHCC, a cultured mushroom extract with a remarkable range of health benefits. We explore its origins, patented culturing process in Japan, and what makes AHCC uniquely bioavailable compared to other mushroom supplements. Meagan shares her health journey, her experiences supporting patients, and her passion for spreading awareness about AHCC’s research-backed potential—from cancer and HPV to Lyme disease and overall immune function. The conversation highlights AHCC’s role as an immunomodulator, antioxidant, and anti-inflammatory compound, reviewing studies that demonstrate its benefits for general immune support and as complementary therapy for serious conditions, such as cancer and chronic infections. Practical topics include supplement quality, dosing, and how to find credible sources. By the end, you’ll have insights and actionable information to evaluate AHCC as part of a thoughtful, science-driven approach to immune optimization and integrative health. Meagan (Mimi) Lindquist (@mimi_themedicin) is the co-founder of The Medicin, alongside her husband Chase. Together, they provide high-quality mushroom products to the world. With her background as a clinical dental hygienist, nutrition guide, and AHCC educator, she has been helping others prevent disease for over 12 years. Now, Mimi is dedicated to sharing the benefits of Immune Intel AHCC, a mushroom product unlike any other, to as many people as possible. She hosts monthly live calls with Dr. Nathan Riley for women trying to clear HPV naturally using AHCC. In her words, it is her "life's passion to spread the word about how powerful it is." Full show notes: bengreenfieldlife.com/ahccpodcast Episode Sponsors: Organifi Shilajit Gummies: Harness the ancient power of pure Himalayan shilajit anytime you want with these convenient and tasty gummies. Get them now for 20% off at organifi.com/Ben. BlockBlueLight: BlockBlueLight BioLights are the only lights extensively tested and recommended by building biologist Brian Hoyer as truly flicker-free, ultra-low EMF, and circadian-friendly, with three modes (day, evening, night) that support natural rhythms and optimize sleep quality. Get 10% off your first order at blockbluelight.com/Ben (discount autoapplied at checkout). 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. LVLUP Health: I trust and recommend LVLUP Health for your peptide needs as they third-party test every single batch of their peptides to ensure you’re getting exactly what you pay for and the results you’re after! Head over to bengreenfieldlife.com/lvluphealth and use code BEN15 for a special discount on their game-changing range of products. BiOptimizers Magnesium Breakthrough: The 7 essential forms of magnesium included in this full spectrum serving help you relax, unwind, and turn off your active brain after a long and stressful day so you can rest peacefully and wake up feeling refreshed, vibrant, and alert. Go to bioptimizers.com/ben and use code ben15 for 15% off any order.See omnystudio.com/listener for privacy information.

4 Loka 52min

In this episode with Dr. Joel “Gator” Warsh, you’ll discover a balanced perspective on vaccines, especially childhood vaccination, at a time when open, evidence-based dialogue is more important than ever. Drawing on his work as an integrative pediatrician, Dr. Warsh shares insights from his new book Between a Shot and a Hard Place, designed not to fuel division but to empower parents with knowledge, research, and practical tools for making informed decisions. You’ll explore the origins and evolution of vaccines, how schedules have changed, the strengths and flaws of safety testing, the nuanced risks and benefits of individual shots, and the importance of informed consent and medical freedom. By weaving together mainstream medicine and holistic practices, Dr. Warsh highlights where the science is strong, where questions remain, and why open conversation is the path toward clarity, confidence, and compassion—and if you’re interested in cutting through fear and hype to understand this complex topic, you won’t want to miss this episode. Dr. Joel "Gator" Warsh is the creator of the parenting Instagram account @drjoelgator and a board-certified pediatrician in Los Angeles specializing in wellness and integrative medicine. He is the author of multiple books, including his latest Between a Shot and a Hard Place: Tackling Difficult Vaccine Questions with Balance, Data, and Clarity. He grew up in Toronto, completed a master’s in epidemiology before earning his medical degree at Thomas Jefferson Medical College, and trained at Children’s Hospital of Los Angeles before founding Integrative Pediatrics. Dr. Warsh has published research in peer-reviewed journals on childhood injuries, obesity, and physical activity and has been featured in documentaries, summits, podcasts, and articles. Full show notes: bengreenfieldlife.com/hardplace Episode Sponsors: Ketone-IQ: Ketones are a uniquely powerful macronutrient that can cross the blood-brain barrier and increase brain energy and efficiency. With a daily dose of Ketone-IQ, you'll notice a radical boost in focus, endurance, and performance. Save 30% off your first subscription order of Ketone-IQ at Ketone.com/BENG. LeelaQ: Not only do LeelaQ’s products neutralize EMFs, increase ATP production, optimize HRV, and improve blood flow, but they've been third-party proven to do so in placebo-controlled double-blind studies. Visit leelaq.com and use code BEN10 for 10% off. LVLUP Health: I trust and recommend LVLUP Health for your peptide needs as they third-party test every single batch of their peptides to ensure you’re getting exactly what you pay for and the results you’re after! Head over to lvluphealth.com/BGL and use code BEN15 for a special discount on their game-changing range of products. Truvaga: Balance your nervous system naturally with Truvaga's vagus nerve stimulator. Visit Truvaga.com/Greenfield and use code GREENFIELD30 to save $30 off any Truvaga device. Calm your mind, focus better, and recover faster in just two minutes. Just Thrive: For a limited time, you can save 20% off a 90-day bottle of Just Thrive Probiotic and Just Calm at justthrivehealth.com/ben with promo code: BEN. That’s like getting a month for FREE—take control today with Just Thrive!See omnystudio.com/listener for privacy information.

2 Loka 59min