The Latest Science on Microplastics — And What They’re Doing to Your Body | Dr. Shanna Swan

The Latest Science on Microplastics — And What They’re Doing to Your Body | Dr. Shanna Swan

Author: Dr. Mark Hyman May 20, 2026 Duration: 1:12:06
We’re surrounded by plastics and environmental chemicals every day, but only recently have scientists begun to understand how deeply they may be affecting human health. On this episode of The Dr. Hyman Show, I sit down with Dr. Shanna Swan to explore what the latest science reveals about plastics, fertility, hormone health, and the everyday habits that may be shaping our biology more than we realize. Watch the full conversation on YouTube, or listen wherever you get your podcasts. We Examine: • Why scientists are increasingly concerned about declining sperm counts, fertility, and hormone health • What microplastics, phthalates, BPA, and PFAS actually do inside your body • Why heating food in plastic can dramatically increase exposure to endocrine-disrupting chemicals • The practical changes that may help you reduce exposure and support long-term health This conversation isn’t about fear, rather it’s about understanding how everyday exposures shape our health and where small, practical changes can make a meaningful difference. If this episode has left you thinking differently about everyday exposure and you want to learn more, here are a few great places to start: • Watch The Plastic Detox • Explore Dr. Swan’s work through the Action Science Initiative • Visit UnplasticYourLife.com for practical ways to reduce exposure at home View Show Notes From This Episode Get Free Weekly Health Tips from Dr. Hyman https://drhyman.com/pages/picks?utm_campaign=shownotes&utm_medium=banner&utm_source=podcast Sign Up for Dr. Hyman’s Weekly Longevity Journal https://drhyman.com/pages/longevity?utm_campaign=shownotes&utm_medium=banner&utm_source=podcast Join the 10-Day Detox to Reset Your Health https://drhyman.com/pages/10-day-detox Join the Hyman Hive for Expert Support and Real Resultshttps://drhyman.com/pages/hyman-hive This episode is brought to you by Seed, Big Bold Health, Timeline, BON CHARGE, Sulighten and BIOptimizers. Go to seed.com/hyman and use code 20HYMAN to get 20% off your first month. Go to bigboldhealth.com/drhyman and use code HYMAN15 to save 15% on your first order. Visit timeline.com/drhyman for 20% off a subscription on top of new starting price of $79. Head to bioptimizers.com/hyman and use promo code HYMAN at checkout to save 15%. Head to fatty15.com/HYMAN today and use code HYMAN for 15% off your 90-day subscription Starter Kit. (0:00) Microplastics in the human body and their sources (0:56) Introduction to Dr. Shanna Swan (3:34) The Plastic Detox documentary and endocrine disruptors (5:21) Dr. Swan's research journey and phthalates (6:29) Decline in sperm count and reproductive impacts (8:45) Early research and phthalate syndrome in humans (11:03) Sources and broader impact of endocrine-disrupting chemicals (19:38) Classes of hormone-altering chemicals and health impacts (22:51) Health impacts beyond reproduction (24:20) Personal and clinical experiences with microplastics (27:02) Measuring microplastics and routes of human exposure (29:29) Methods to reduce microplastic exposure (31:14) Biological and regulatory aspects of microplastics (35:02) Plastic Detox movie findings and intervention results (41:16) Chemicals in microplastics and their effects (47:21) Legislation and consumer protection against toxic chemicals (50:54) Diagnostic testing for toxic exposure: importance and costs (53:09) Practical steps to reduce chemical exposures (55:35) Avoiding plastic and toxic exposures in daily life (58:10) Skincare, fragrance, and chemical exposure (1:01:19) Rapid-fire questions on health and environmental practices (1:09:06) Resources for testing and exposure reduction

Hosted by physician and functional medicine pioneer Dr. Mark Hyman, The Dr. Hyman Show is a conversation about reclaiming your well-being. Each episode digs into the interconnected systems that shape our health, moving beyond symptom management to address foundational causes. You’ll hear detailed discussions on nutrition, the roots of chronic disease, mental health strategies, and the science of longevity, all framed through a functional medicine lens. Dr. Hyman engages with leading experts and thinkers to challenge conventional wisdom on food policy and prevention, offering a practical and often provocative perspective. This podcast serves as a resource for anyone feeling lost in a healthcare system that can overlook root causes, providing actionable knowledge to make informed daily choices. Tune in for a deep, evidence-based exploration of how our bodies truly work, empowering you to reimagine your personal health potential through informed dialogue and discovery.
Author: Language: English Episodes: 100

The Dr. Hyman Show
Podcast Episodes
Feeding Kids Is Hard—Here’s What They Actually Need [not-audio_url] [/not-audio_url]

Duration: 38:27
Most parents are doing their best but the modern food environment is working against them. Between ultra-processed foods, constant marketing, and confusing nutrition advice, it’s easy to feel overwhelmed. But what your c…
We Can Detect Cancer Years Earlier—So Why Aren’t We? [not-audio_url] [/not-audio_url]

Duration: 1:08:14
Most of medicine is built around snapshots. You feel something, you test for it, and by the time you find it, you’re already behind. But what if the problem isn’t the test—it’s how we use it? In this episode, I sit down…
Can’t Fall or Stay Asleep? Your Sleep Questions Answered [not-audio_url] [/not-audio_url]

Duration: 29:40
Sleep is one of the most important and most overlooked drivers of your health. If you’re struggling to fall asleep, waking up at 2–4am, or getting a full night’s sleep but still feeling exhausted, your body is trying to…
What It Really Means to Regulate Your Nervous System—and How to Start [not-audio_url] [/not-audio_url]

Duration: 20:00
If you’re doing everything “right”—eating well, taking supplements, working on your health—but still feel stuck, this might be the missing piece. Your body cannot heal if it thinks it’s under threat. In this episode, we…
NBA Legend Chris Paul on Longevity, Nutrition & Staying Elite at 40 [not-audio_url] [/not-audio_url]

Duration: 1:04:06
Longevity isn’t just about talent—it’s about what you’re willing to change when your body starts asking for something different. On this episode of The Dr. Hyman Show, I’m joined by Chris Paul—one of the most respected p…
How to Reduce Seasonal Allergies Starting This Week [not-audio_url] [/not-audio_url]

Duration: 21:11
Seasonal allergies aren’t just about pollen—and if you’re only treating symptoms, you’re missing the real problem. What if your allergies are actually a sign that your immune system is out of balance? In this episode, we…
Why Endometriosis Keeps Coming Back (And How to Break the Cycle) [not-audio_url] [/not-audio_url]

Duration: 40:26
Endometriosis affects 1 in 10 women yet it often takes years to diagnose, and many are told their pain is “normal” or simply treated with birth control or surgery. But endometriosis isn’t just a hormone issue—it’s a whol…