Podcast
Dr. Joseph Mercola - Take Control of Your Health
Hosted by Dr. Mercola · EN
Listen to Dr. Mercola's Weekly Podcast, as the legendary natural health pioneer continues to lead you on your journey towards optimal health.
51episodes
Episodes
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From Bakelite to Biohazard — The Century-Long Rise of Microplastics
Today00:07:22Tap to summarizePlastics are everywhere — from bottles and food wrappers to your phone and your car — because they're cheap and durable. But over time, they break down into microplastics that may harm the environment and have been linked to potential health effects Global plastic production exploded from 2 million tons in 1950 to over 450 million tons by 2018. Without strict limits, it could triple by 2060, worsening pollution worldwide The manufacturing boom was fueled by convenience and profit. Today, single-use plastics dominate, and petrochemical companies rely on them for revenue, spreading pollution even to the most remote regions Sunlight, water, and even tiny organisms break plastic into micro- and nanoplastics. These fragments travel through air, water, and food, and eventually end up inside your body Scientists are racing to redesign plastics and strengthen global policies. Greener materials, recycling incentives, and binding treaties are crucial to stopping the flow of plastic waste and protecting future generations
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Cortisol Kill-Switch: Exercise Rewires Stress Biology
Yesterday00:06:46Tap to summarizeA 12-month clinical trial found that consistent aerobic exercise lowered long-term cortisol levels, showing your body can reduce chronic stress when you train it regularly About 150 minutes per week of moderate-to-vigorous movement was enough to create measurable changes, making stress reduction achievable with a realistic routine Cortisol is not just a stress hormone but a survival tool that stabilizes blood sugar, yet chronically high levels shift your body into a constant state of dysfunction Exercise improves your stress response even without weight loss, meaning your internal systems become more resilient before you see physical changes Combining steady exercise, enough carbohydrates, and proper recovery helps break the stress cycle at its root so your body stops reacting as if it's under constant threat
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The Collagen Crisis: Why Most Adults May Be Running a Deficit They Don't Know About
2d ago00:07:35Tap to summarizeYour body needs about 12 grams of glycine daily just for collagen synthesis, but can only make about 3 grams and gets 2 to 4 grams from a typical diet, leaving a notable 10-gram daily deficit in many adults This deficit isn't a disease. It's an evolutionary constraint built into human biochemistry. Our glycine synthesis pathway has a hard stoichiometric bottleneck that can never be overcome, regardless of how healthy you are Collagen makes up 25% to 30% of your total body protein, but its production is limited by glycine, which occupies every third position in the collagen chain. The procollagen quality control cycle destroys 30% to 50% of newly synthesized collagen, and some amino acids lost in this process cannot be fully recycled Over time, chronic glycine deficiency may contribute to changes in skin, joints, bones, gut lining, blood vessels, and sleep quality. Glycine deficiency has been observed across a range of conditions, including Type 2 diabetes, insulin resistance, pregnancy, and xenobiotic exposure A 2025 meta-analysis reported that collagen peptide supplementation was associated with improvements in bone and muscle health markers in the populations studied, consistent with the idea that glycine availability may have functional implications
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Most Americans Are Deficient in the One Nutrient Vitamin D Depends On
3d ago00:07:07Tap to summarizeMany people focus on vitamin D intake, but without enough magnesium your body can't activate it, leaving you functionally deficient even with sun exposure or supplements Nearly 80% of U.S. adults fall short on magnesium, creating a widespread hidden barrier that limits how well your body uses vitamin D Magnesium acts as a regulator, helping raise low vitamin D levels and reduce excessive levels to keep your body in balance If you have taken vitamin D and seen little improvement in energy, mood or lab results, low magnesium is often the missing piece Correcting magnesium levels, getting sunlight, and pairing vitamin D3 with key nutrients allows your body to use vitamin D the way it was designed to
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Lower 'Biological Age' Strongly Linked to Brain Protection
4d ago00:07:11Tap to summarizeYour brain ages based on your internal health, not just your birthday, and when your biological age runs higher than your actual age, your risk of stroke and cognitive decline rises sharply Lowering your biological age leads to measurable brain protection, including reduced stroke risk, less structural damage, and better preservation of memory and thinking ability Your environment plays a major role in brain aging, with combined exposures like pollution, stress, and social conditions having a far stronger impact than any single risk factor alone Brain damage builds gradually through inflammation, poor blood flow, and metabolic stress, which means early changes in your lifestyle directly influence long-term brain health Improving metabolism, reducing toxic exposures, staying active, using sunlight wisely, and managing stress work together to slow biological aging and protect your brain over time
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Mercury Fillings Raise Mercury Levels Throughout Your Body
5d ago00:06:49Tap to summarizeDental "silver fillings" are made with roughly 50% mercury, and researchers found adults with amalgam fillings carried significantly higher blood mercury levels than people without them The study showed that mercury exposure rose as the number of amalgam filling surfaces increased, meaning every additional filling added to the body's toxic burden Mercury vapor released from fillings travels through the bloodstream, crosses into the brain and placenta, and accumulates inside tissues over time even when blood tests appear relatively normal Everyday habits such as chewing gum, grinding your teeth, and drinking very hot beverages increase mercury vapor release from amalgam fillings and raise ongoing exposure Choosing mercury-free dentistry, avoiding unsafe removal procedures, and supporting efforts to ban amalgam nationwide help reduce long-term mercury exposure for you and your family
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Are You Taking Vitamin D at the Wrong Time?
1w ago00:06:42Tap to summarizeTaking vitamin D at midday with your largest meal improves absorption and helps your body use it more effectively for mood, sleep, and brain function Normal vitamin D blood levels don't guarantee results because your body needs to convert it into an active form that your cells can actually use A large portion of people struggle with this activation step, which explains why symptoms like fatigue and poor sleep persist despite supplementation Sunlight remains the most effective way to produce vitamin D naturally; removing seed oils improves your ability to tolerate midday sun safely Pairing vitamin D3 with magnesium and vitamin K2, tracking your levels, and staying physically active helps your body activate and maintain vitamin D year-round
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The Surprising Benefits of Matching Your Workout Schedule to Your Natural Body Clock
1w ago00:06:37Tap to summarizeMatching your workout time to your natural body clock leads to significantly better results without changing the workout itself Exercising at the right time nearly doubles improvements in blood pressure, while also boosting fitness, metabolism, and sleep quality Your internal rhythm controls energy, strength, and recovery, so training at the wrong time reduces efficiency and limits progress Consistent, moderate exercise delivers strong results when timing is aligned with your body clock, showing you don't need extreme workouts to see real change Workouts feel easier to maintain when they match your natural energy patterns, making consistency more automatic and sustainable
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Akkermansia Claims to Support Gut Health — Here's What the Science Says
1w ago00:07:39Tap to summarizeAkkermansia muciniphila is a gut microbe that thrives in your intestinal mucus layer. It's linked to improved metabolic health, but its levels decrease with age and poor diet Studies suggest Akkermansia may support a healthy weight by influencing fat mass, insulin sensitivity, and inflammatory markers, as shown in animal models. It also has roles in glucose and lipid metabolism Akkermansia may stimulate natural GLP-1 production. It may also help support blood sugar regulation and cardiovascular health markers Research has also linked Akkermansia levels to intestinal barrier integrity, immune regulation, and the gut microbial ecosystem, and has been observed as a marker associated with favorable metabolic profiles To boost Akkermansia levels, consume polyphenol-rich foods and high-inulin vegetables. Supplements are available but require careful dosing and timing for effectiveness
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Collagen Peptides Could Positively Influence Longevity and Signs of Aging
1w ago00:07:08Tap to summarizeCollagen makes up a large share of your body's protein, yet production drops every year with age, which contributes to wrinkles, weaker connective tissue, reduced strength, and slower recovery Researchers identified a specific pattern of collagen amino acids — glycine, proline, and hydroxyproline — that may signal your body to repair tissue, support physical function, and influence biological aging Human participants who consumed a collagen amino acid formulation showed measurable improvements in skin texture, hydration, and elasticity within one to three months After six months, biological age markers shifted younger on average, suggesting that targeted collagen amino acid supplementation may influence internal aging processes rather than appearance alone Supporting collagen at the root involves adequate protein with collagen-rich sources, vitamin C intake, protection against collagen breakdown, and high-quality collagen or gelatin sourced from properly raised animals
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