The Dr. Hyman Show

Living with chronic illness can feel like collecting diagnoses without getting real answers. Symptoms are treated one at a time, but the underlying causes can easily be missed. What if asking a different question is the first step toward feeling better? In this episode, I’m joined by Dr. Richard Horowitz, an internationally recognized Lyme disease expert and author of the new book Ending Chronic I...

What if the fatigue, brain fog, joint pain, or mysterious symptoms you've been chasing for years weren't caused by stress, aging, or burnout—but by a tick bite you never even noticed? Lyme disease is one of the most misunderstood illnesses in medicine. But Lyme is rarely just one infection—it's often part of a much bigger picture involving co-infections, immune dysfunction, inflammation, gut healt...

For decades, depression has often been described as the result of a chemical imbalance in the brain. But how strong is the evidence behind that idea? This episode explores one perspective on an area of medicine that continues to be actively debated and is intended to encourage thoughtful discussion—not to provide individualized medical advice. Today on The Dr. Hyman Show, I'm joined by psychiatris...

Do you hit a wall every afternoon around 2 or 3 p.m.? If your energy disappears, your brain gets foggy, and you need caffeine or sugar just to finish the day, it isn't a lack of willpower—it's a sign that something deeper is driving your energy crash. In this episode, I explain the three biggest drivers of the afternoon slump and the simple changes that can help you maintain steady energy all day...

We all experience stress. The real challenge isn't stress itself—it's whether we recover from it. Over time, chronic stress can quietly affect everything from inflammation and metabolism to sleep, digestion, and healthy aging. This week on The Dr. Hyman Show, I talk with nervous system educator and HRV expert Salim Najjar to explore what heart rate variability (HRV) can reveal about your body's ab...

Histamine isn't just about seasonal allergies or a runny nose. It influences your brain, gut, hormones, immune system, and nervous system—and when your body can't regulate it properly, it can show up as everything from anxiety and migraines to insomnia, digestive issues, skin rashes, and brain fog. In this episode, I explain why histamine overload happens, how it relates to Mast Cell Activation Sy...

For decades, we've thought about conditions like Alzheimer's disease, depression, and Parkinson's disease as disorders of the brain. But what if that's only part of the story? Emerging science is revealing that many of the factors driving cognitive decline, mental illness, and neurodegenerative disease may begin far outside the brain itself—in our metabolism, our immune system, our gut microbiome,...

You've cleaned up your diet. You're taking the supplements. You're exercising, sleeping more, and doing everything "right." So why do you still feel exhausted, inflamed, anxious, or stuck? In this encore episode—one of the most impactful Office Hours conversations we've shared—I explore a question that could change the way you think about healing: What if your nervous system is the missing piece?...

As part of our summer series, we're revisiting some of the most important conversations we've had on the topics that matter most to our health. And few are more important than heart disease. Heart disease remains the number one cause of death worldwide. Yet despite decades of research, millions of prescriptions, and billions of dollars spent on treatment, many people are still confused about what...

High cholesterol has been treated as the main cause of heart disease for decades. But over the years, I've changed my mind. Today, I believe cholesterol is only part of the story, and that inflammation, insulin resistance, and metabolic health are often the real drivers of cardiovascular disease. In this encore episode, I'm revisiting one of my most talked-about Office Hours conversations to share...

Most health issues don't appear overnight. Long before a diagnosis is made, the body often provides subtle clues that something needs closer attention. On this episode of The Dr. Hyman Show, I talk with double board-certified fertility physician Dr. Natalie Crawford about her new book, The Fertility Formula, and why fertility and hormone health can reveal far more about your health than many peopl...

Bloating, brain fog, fatigue, skin issues, food sensitivities, autoimmune symptoms—most people treat these as separate problems. But often, they can all trace back to the same place: the gut. And the surprising part is that you don't need digestive symptoms to have gut dysfunction. Because your gut isn't just responsible for digestion—it's deeply connected to your immune system, hormones, metaboli...

We’ve been taught to treat chronic diseases as isolated problems to be diagnosed and managed. But these conditions may have more in common than conventional medicine has traditionally recognized. On this episode of The Dr. Hyman Show, I’m joined by physician and researcher Dr. Terry Wahls, who transformed her understanding of disease after developing progressive multiple sclerosis. We discuss the...

Mold is one of the most misunderstood topics in health. Some people are told it’s not a real problem. Others are led to believe it’s the cause of every symptom they have. The truth lies somewhere in the middle. While not everyone exposed to mold gets sick, chronic exposure to water-damaged environments can contribute to fatigue, brain fog, anxiety, sinus issues, immune dysfunction, hormone imbalan...

If we're wired for joy, why do so many successful people feel exhausted, disconnected, or emotionally flat? On this episode of The Dr. Hyman Show, I sit down with psychiatrist, researcher, and author Dr. Judith Joseph, whose team conducted the first peer-reviewed clinical study on high-functioning depression. We talk about why feeling "fine" on the outside doesn't always reflect what's happening b...

High cholesterol is one of the most common reasons people are told they’re at risk for heart disease. But what if cholesterol isn’t the root problem? What if it’s actually a signal of deeper metabolic dysfunction—and focusing on the number alone causes us to miss what’s really driving cardiovascular risk? In today’s episode, we explore a functional medicine approach to cholesterol and heart health...

Depression is often treated as a single condition. But two people with the same diagnosis can have completely different underlying causes. On this episode of The Dr. Hyman Show, I’m rejoined by Dr. James Greenblatt to explore why depression may be less of a disease and more of a signal that something deeper is going on. We discuss how a root-cause approach can uncover what’s driving symptoms and w...

Morning routines have become one of the most talked-about topics in health and wellness—but it’s not just about productivity or checking boxes. How you start your morning has a direct biological impact on your brain, your energy, your metabolism, and even how well you sleep at night. Yet, so many people inadvertently sabotage their biology first thing in the morning with dopamine hits, sugar, and...

For far too long, many women have been told their symptoms were normal, exaggerated, or simply something they had to live with—treated as isolated problems instead of part of a much larger hormonal transition happening inside the body. On this episode of The Dr. Hyman Show, I’m joined by Dr. Sharon Malone, host of The Second Opinion podcast and Chief Medical Advisor at Alloy Women’s Health. We dis...

Hormone replacement therapy is one of the most talked about—and misunderstood—topics in women’s health. For years, women were told HRT was dangerous. Now, the conversation is shifting, but many are still left confused about what’s actually safe, when to start, and whether hormones are even right for them. In today’s episode, I’m joined by Dr. Cindy Geyer from my clinic, The UltraWellness Center, t...

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 reali...

Hydration affects far more than thirst. Even mild dehydration can impact your focus, memory, mood, energy, and overall brain performance—yet most people walk through the day without realizing they’re under-hydrated. The problem isn’t just not drinking enough water. It’s also caffeine overload, low electrolytes, processed foods, and inconsistent habits that quietly leave your brain and body struggl...

Most health and fitness advice for women is based on research done in men. That’s something we need to rethink. On this episode of The Dr. Hyman Show, I sit down with Dr. Stacy Sims, an exercise physiologist and leading researcher in women’s health. Her work has focused on how female physiology actually changes over time—and how training and nutrition need to change with it. Watch the full convers...

Autoimmune disease is often treated as something random, lifelong, and out of your control. But what if it’s not your body malfunctioning—what if it’s your immune system responding exactly the way it’s designed to, to something it sees as a threat? When you understand what’s driving that response, everything changes. Here’s what I cover in today’s episode: • The 5 key drivers—food, toxins, gut hea...

We tend to think of heart disease, cancer, and Alzheimer’s as separate problems. But what if they all stem from the same underlying process? On this episode of The Dr. Hyman Show, I sit down with Dr. Eric Verdin, whose research, including work on compounds like urolithin A, is helping reshape how we think about aging and long-term health. We explore why aging may be the biggest driver of chronic d...