Chris Kresser

Cold plunges and ice baths dominate social media, but do they really deliver the best metabolic benefits? In this episode of Revolution Health Radio, Chris Kresser challenges the “colder is better” narrative and explores what the science actually shows about cold exposure. Drawing on clinical research, he explains how brown adipose tissue works, why sustained mild cold exposure activates it more effectively than brief extreme cold, and how this can improve insulin sensitivity, glucose metabolism, and overall metabolic health.

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In this episode of Revolution Health Radio, Chris challenges the conventional focus on sleep duration and makes the case that sleep timing and circadian alignment matter just as much—if not more—than total hours slept. Drawing on new research, he explains how circadian disruption underlies poor sleep quality, chronic fatigue, and a wide range of mental health conditions, even in people who appear to be doing everything “right.” He explains why light exposure, sleep-wake consistency, and meal timing are the primary drivers of restorative sleep, why adolescents are uniquely vulnerable to sleep-related mental health risks, and shares practical strategies to improve sleep naturally and when supplements may be helpful.

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In this episode of Revolution Health Radio, Chris examines research confirming that menopause-related brain fog is real, measurable, and reversible. He explains how gray and white matter changes, blood-flow disruption, inflammation, and declining estrogen impact cognitive function during perimenopause and menopause. He also highlights the critical role of the gut microbiome in regulating estrogen metabolism and influencing brain health, and provides listeners with a comprehensive, root-cause approach to improving memory, focus, and clarity through diet, exercise, stress management, sleep, targeted nutrients, and gut-supportive strategies.

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Seed oils have become one of the most controversial topics in nutrition, especially after a 2024 University of South Florida study linked high omega-6 levels with inflammation in colon tumors. In this episode of Revolution Health Radio, Chris takes a deep, evidence-based look at what the study actually means — and what it doesn’t. You’ll learn the crucial difference between naturally occurring omega-6 fats in whole foods like nuts, chicken, and avocados and oxidized omega-6 fats found in ultra-processed foods and industrial seed oils. He explains why awareness of the omega-6 to omega-3 ratio and the issues of the modern Western diet are far more important than demonizing individual oils and offers practical advice on which cooking oils to use, which to limit, how to improve omega-3 intake, and how to adopt a balanced approach to dietary fats without fear or obsession.

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In this episode, Chris explains why obsession with anti-aging hacks may actually undermine our long-term health. He examines the common longevity traps people fall into, which foundational habits truly extend lifespan and health span, and outlines a simple framework for prioritizing what really works. If you’re overwhelmed by conflicting longevity advice, this episode brings clarity, realism, and a grounded path forward.

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In this episode of Revolution Health Radio, Chris welcomes psychiatrist Dr. Matt Bernstein to explore the emerging field of metabolic psychiatry, the science linking brain energy metabolism to mental health. They discuss how conditions like depression, bipolar disorder, schizophrenia, and anxiety often share a root cause in impaired brain energy production, and how ketogenic therapy can restore balance and improve outcomes where traditional treatments fall short. Chris and Dr. Bernstein also unpack the latest research, the mechanisms behind ketones’ impact on the brain, and practical considerations for adults, teens, and families exploring this approach.

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In this episode of Revolution Health Radio, Chris explores natural solutions for one of today’s most pressing challenges: chronic stress, anxiety, and poor sleep. He shares his top five nutrients for restoring calm and focus (saffron, L-theanine, lemon balm, holy basil, and ashwagandha), revealing how each supports the brain and body’s ability to relax, recharge, and build resilience. Drawing from both scientific research and clinical experience, Chris explains how these compounds balance neurotransmitters, reduce cortisol, and improve mood and sleep quality without sedation or dependence. Listeners will learn practical strategies for combining these nutrients safely and effectively to achieve steady energy, emotional balance, and deep, restorative rest. This episode offers a roadmap to move from wired and tired to calm and clear, using evidence-based tools rooted in both modern science and ancient wisdom.

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In this episode of Revolution Health Radio, Chris welcomes board-certified periodontist Dr. William Levine to discuss the overlooked role of gum health in systemic disease. They unpack how oral bacteria and chronic inflammation contribute to conditions like heart disease, dementia, autoimmune disorders, and pregnancy complications, and why periodontal health is as critical as diet and lifestyle in preventing chronic illness. Dr. Levine shares how to recognize early signs of gum disease, the latest approaches to treatment and prevention, and the importance of personalized care. The discussion highlights emerging technologies including laser therapy, PRP, photobiomodulation, and PEMF, offering a glimpse into the future of dentistry and frequency medicine. Listeners will come away with a deeper understanding of how maintaining oral health supports whole-body wellness and what promising innovations lie ahead.

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In this episode of Revolution Health Radio, we dive deep into the topic of beauty from within, exploring why radiant skin, hair, and nails truly start from the inside. Chris discusses how internal factors such as gut function, nutrient status, inflammation, blood sugar regulation, hormonal balance, and stress management are foundational to external beauty. He explains the science behind the gut-brain-skin axis, the role of inflammation and leaky gut in skin health, and how stress impacts our appearance. He also highlights six key nutrients that can significantly enhance skin hydration, elasticity, and overall appearance, and shares practical insights into incorporating these science-backed nutrients into your diet or supplementation routine, empowering you to support your natural beauty from the inside out.

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In this episode of Revolution Health Radio, Chris Kresser welcomes environmental wellness expert Michael Rubino for an in-depth conversation on the hidden health risks of indoor air pollution. They delve into why mold-related illness is more common than most people realize, how traditional mold testing methods often fail, and why household dust holds the key to understanding environmental exposure. Michael explains the concept of “clean breathing,” the impact of modern home construction on air quality, and how to assess your indoor environment using practical DIY tools. The discussion also covers overlooked threats like formaldehyde, VOCs, radon, and microplastics, as well as actionable strategies for remediation and improving ventilation. Finally, Michael offers essential advice for vetting professionals, avoiding costly missteps, and creating a healthier home environment for long-term well-being.

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