The Dr Kumar Discovery

Transcranial Magnetic Stimulation (TMS) is one of the most promising, evidence-based, noninvasive treatments in modern neuroscience, yet most people, including many physicians, have never heard of it. In this episode, Dr. Ravi Kumar sits down with neurologist Dr. Ali Elahi, who has spent years treating depression, dementia, OCD, PTSD, ADHD, addiction, neuropathic pain, and post-stroke deficits using advanced, targeted TMS protocols. 

Unlike medications, TMS requires no anesthesia, no surgery, and no daily pills, and carries an extraordinarily low risk profile. And the clinical results, especially for treatment-resistant depression and early dementia, are often life-changing. As Dr...

Thanksgiving relaxation isn’t just folklore or “turkey makes you sleepy.” It’s a real collision of biochemistry, nutrition, and human connection that shifts the body into calm, balance, and deep sleep. This episode explains how tryptophan becomes serotonin and melatonin, why carbohydrates amplify the effect, and why feeling safe with people you love may be the most powerful physiology of all.

In this episode, you will discover:

• What tryptophan is and why the brain depends on it

• How tryptophan converts to serotonin and melatonin

• Why carbs and...

What if summer once meant danger instead of vacations? What if a simple dip in a swimming pool could change a child’s life forever? 

In this episode, Dr. Ravi Kumar takes you back to the terrifying era of polio in mid-20th century America, a time when hospitals filled with iron lungs, cities closed public spaces, and parents lived in constant fear. You will uncover how a mysterious virus crippled a generation, and how a global race for a vaccine transformed medicine and changed the fate of the world. 

Travel from t...

Perimenopause and menopause affect every woman who lives long enough, yet these transitions remain deeply misunderstood, underdiagnosed, and undertreated. In this episode, Dr. Ravi Kumar sits down with two menopause experts, Dr. Diana Kumar and Dr. Teresa Walsh, to break down what’s actually happening with hormones, why so many women are dismissed by the medical system, and how modern hormone therapy can safely transform a woman’s quality of life. 

This conversation covers the real symptoms of perimenopause, the difference between perimenopause and menopause, why labs often come back “normal” despite debilitating symptoms, what the Women’...

 What if one scientist could stop famine, save a billion lives, and change the fate of nations? 

In this episode of Tribulations, Dr. Ravi Kumar tells the astonishing true story of Norman Borlaug, the quiet American farm boy whose breakthroughs in wheat genetics transformed the global food supply and rescued India and Pakistan from the brink of collapse. 

You’ll travel from the dusty fields of Iowa to the war-torn farmlands of the Indian subcontinent, tracing how Borlaug’s relentless science sparked the Green Revolution, fed the hungry, and won him the Nobel...

 Heartburn is not too much acid, it's acid in the wrong place. 

This episode explains GERD, why PPIs create dependence, and how to fix reflux by restoring physiology, not suppressing it. 

In this episode, you will discover: 

• Why GERD is a mechanical problem, not an acid problem 

• How the lower esophageal sphincter and diaphragm form your anti-reflux barrier 

• The rebound loop created by chronic acid suppression and hypergastrinemia 

• The foods, habits, and medications most likely to trigger reflux events 

• A practical two to four week reset to...

What happens when a life-saving cure is discovered, and then given away for a single dollar?

In this Tribulations episode, Dr. Ravi Kumar tells the remarkable story of Frederick Banting, the farm boy turned surgeon whose late-night idea led to the discovery of a method for extracting insulin and saved millions of lives. You’ll travel from the starvation wards of the early 1900s to the sweltering attic lab in Toronto where Banting and Charles Best performed the experiments that changed medicine forever. Dr. Kumar also explores the moral and policy issues that continue to shape insulin ac...

Sleep isn’t a luxury; it’s the foundation of every system in your body. 

In this episode of The Dr Kumar Discovery Podcast, Dr. Ravi Kumar explores the neuroscience, hormones, and daily habits that drive great sleep. You’ll learn how to optimize circadian rhythm, manage sleep pressure, and use proven evidence-based strategies to restore energy, focus, and long-term health. 

In this episode, you’ll discover: 

• What really happens in your brain during deep and REM sleep 

• How your circadian rhythm and adenosine work together to trigger rest 

• Why poor sl...

What if one of the greatest medical breakthroughs of the past century wasn’t a high-tech device or a billion-dollar drug, but a humble mix of salt, sugar, and water? 

In this Tribulations episode, Dr. Ravi Kumar tells the story of how oral rehydration solution (ORS) emerged from the chaos of cholera epidemics and became one of the simplest and most lifesaving discoveries in medical history. 

You’ll hear how scientists and doctors across continents, from Robert Crane’s biochemical insight to Dilip Mahalanabis’s daring field implementation, turned a molecular mechanism in...

Coffee, tea, and energy drinks fuel our mornings, our focus, and sometimes our entire lives. But beneath the daily ritual lies a question few ever ask: is caffeine truly helping us... or just keeping us hooked? 

In this episode of The Dr. Kumar Discovery Podcast, Dr. Ravi Kumar takes you deep into the biology, history, and modern science of caffeine, the most widely used psychoactive drug on Earth. You’ll learn how it sharpens the brain, enhances performance, and even supports long-term health, but also where it can quietly undermine sleep, anxiety, and blood...

 Acetaminophen, better known as Tylenol, has long been considered the safest choice for pain and fever during pregnancy. But a new review from researchers at Mount Sinai and Harvard raised concerns: could prenatal acetaminophen use be linked to higher rates of autism and ADHD in children? 

The debate exploded when President Trump publicly warned pregnant women to “fight like hell” against taking acetaminophen. His statement left doctors, parents, and the public asking: what does the science really say? 

In this episode of The Dr. Kumar Discovery Podcast, Dr. Ravi Kumar breaks down the...

***Correction*** - The CNCM I-745 strain of Saccharomyces boulardii is currently only sold by Florastar. This is the most studied strain of Saccharomyces boulardii. I've also tried brands such as Jarrow and Pure, and they've worked well, but the majority of the research supports the CNCM I-745 strain. In the podcast, I mentioned that most of the strains are this CNCM I-745 strain, but that was factually incorrect.  

What if a simple yeast, scraped from the peel of tropical fruit during a cholera epidemic, could change the way we protect our microbiome? 

In the...

Testosterone levels decline steadily with age, leaving many men with less energy, lower libido, more body fat, weaker bones, and fading vitality. By age 60, 1 in 5 men is already clinically hypogonadal, and by 80, half are. But should we accept this as inevitable, or use modern medicine to restore hormones to youthful levels? 

In this episode of The Dr. Kumar Discovery Podcast, Dr. Ravi Kumar unpacks the science of male hormone optimization. You’ll learn what healthy testosterone looks like in younger men, how testosterone really works in the body, and what happens when levels drop...

 Stomach Full of Courage: The Self-Experiment That Proved H. pylori Causes Ulcers 

What drives a doctor to drink a flask of bacteria, knowing it could make him violently ill? In the early 1980s, Dr. Barry Marshall and Dr. Robin Warren stood against the entire medical establishment to prove that most ulcers were not caused by stress or acid, but by a spiral-shaped bacterium called Helicobacter pylori. 

This discovery overturned decades of dogma, reshaped ulcer care, and ultimately won them the Nobel Prize. But it came at a cost: ridicule, resistance, and the r...

 Why This Neurosurgeon Will Never Use Nicotine

 
Nicotine is being rebranded online as a clean, safe, even “smart” compound. Influencers call it a focus booster. Companies market it as harmless when separated from smoke. Millions are being persuaded. But what does the science really say?
 
In this deep dive, Dr. Ravi Kumar breaks down the full story of nicotine, from its plant origins to its powerful grip on the human brain. You’ll learn how it hijacks dopamine, why it damages healing and metabolism, and what the research shows about its supposed benefits for focus, me...

What happens when a country doctor risks the life of an eight-year-old boy in the hope of defeating humanity’s deadliest disease? In 1796, Dr. Edward Jenner carried out a bold and deeply controversial experiment: infecting the gardener’s son, James Phipps, with cowpox to see if it would protect him against smallpox. It succeeded—and marked the birth of vaccination. But at the same time, it raised profound ethical questions that still echo today.

In this episode of Tribulations, Dr. Ravi Kumar guides us through the tension between discovery and morality. You’ll explore:

 How to Make Gout Disappear From Your Life 

What if one of the most excruciatingly painful diseases in history, once called “the disease of kings”, didn’t have to exist at all? Gout, an inflammatory arthritis caused by uric acid crystals, has plagued everyone from Henry VIII to Benjamin Franklin. Yet today, science shows us it can often be prevented or even eliminated with the right knowledge and choices. 

In this eye-opening episode, Dr. Ravi Kumar unpacks the history, biology, and modern causes of gout, and reveals why this ancient disease is now a co...

What happens when a children’s book author refuses to accept “good enough” in the face of a life-or-death medical crisis? In 1960, Roald Dahl, famed author of Charlie and the Chocolate Factory, found himself fighting for his infant son’s life after a devastating accident caused hydrocephalus, a dangerous buildup of fluid in the brain. 

In an era when shunt valves failed constantly, Dahl brought together an unlikely team: a pioneering pediatric neurosurgeon, a pediatric brain surgeon, and a retired toy maker. Together, they created the WDT valve, a life-saving device that resisted clogging an...

PANDAS – Could Your Child’s Behavior Changes Be Cured with an Antibiotic?

Has your child suddenly changed?... Experiencing unexplained anxiety, depression, OCD behaviors, or other alarming shifts? It could be PANDAS (Pediatric Autoimmune Neuropsychiatric Disorders Associated with Streptococcal Infections), an often overlooked condition triggered by a common strep infection.

In this powerful episode, Dr. Ravi Kumar shares his deeply personal story of discovering PANDAS after his own daughter faced dramatic behavior changes that baffled doctors and devastated his family. Learn why PANDAS is frequently misdiagnosed, leaving families confused and children untreated.

In t...

In this episode, I share the tragic and powerful story of Dr. Ignaz Semmelweis — a physician who discovered how to save the lives of countless mothers in 19th-century Vienna. His discovery? Something as simple as handwashing. But rather than being hailed as a hero, he was ridiculed, silenced, and ultimately destroyed by the very profession he tried to reform. 

This story isn’t just about history — it’s a warning. About arrogance. About the reflexive rejection of new ideas. About what happens when certainty replaces curiosity. 

This is the first installment of a new sto...

Dr. Kumar dives into the hidden global crisis of zinc deficiency: covering its fundamental biology, landmark clinical cases, RDA versus optimal dosing, ancestral insights, and practical tips to ensure you aren’t one of the two billion people missing out on this essential micronutrient. 

Episode Highlights 

Support Gavin’s Journey

This episode features the incredible story of Gavin—a young boy who defied all medical odds after a devastating brain cancer diagnosis.

Follow and support Gavin and his family here:

Episode Summary

Why is vitamin C—a nutrient most people take for granted—still at the center of scientific debate and miraculous recoveries? In “The Vitamin C Paradox,” Dr. Ravi Kumar explores the hidden complexity behind this essential molecule, from our evolutionary dependence to it...

Episode Summary 

In this deep-dive episode, Dr. Ravi Kumar explores why omega-3 fatty acids are foundational to human health—touching on their biochemistry, evolutionary history, robust clinical evidence, and practical strategies for optimizing intake. You’ll learn: 

 Episode 7: Why You Should Be Taking Vitamin K2 

Host: Dr. Ravi Kumar MD

Topic: A comprehensive look at vitamin K2’s discovery, mechanisms, clinical evidence, and why it’s essential for calcium homeostasis, bone strength, and vascular health. 

📖 Episode Overview 

 In this episode, Dr. Ravi Kumar uncovers the powerful, misunderstood role of vitamin D in your health—and why nearly half the world is deficient. Far more than a bone vitamin, vitamin D acts as a hormone that regulates over 1,000 genes and plays a role in everything from immune function and mood to metabolism, muscle strength, and even cancer prevention. 

Dr. Kumar shares stories from his family, travels, and medical practice—including a powerful transformation in his grandmother’s health—to reveal the often-overlooked symptoms of deficiency and how to fix them. You’ll learn about testing...

 Episode 5: The Untold Power of Diet and Lifestyle (Cardiovascular Disease: Part 5) 

 
In this episode, we uncover why real-world interventions—whole-food diets, metabolic health markers, and the simplest “medicine” of all—walking—outperform any pill in preventing and reversing heart disease. 

Topics include 

 Episode 4: Should You Take a Statin? (Cardiovascular Series: Part 4)

In this episode, we dive deep into statins—the most widely prescribed cholesterol-lowering drugs—and ask the hard questions: 

Do they really prevent heart disease? Are the benefits worth the risks? What does the data really say? 

Topics include: 

In this episode of the Dr. Kumar Discovery Podcast, we dive deep into one of the most controversial questions in human health: Does high LDL cholesterol actually cause heart disease? 

We explore the historical origins of the cholesterol hypothesis, unpack evidence from traditional societies and modern studies, and challenge the “lower is better” narrative. You’ll learn how cholesterol functions in the body, why LDL may not be the villain it’s made out to be, and when lowering it actually makes sense. 

We cover: 

In this eye-opening second installment of our series on cardiovascular disease, Dr. Ravi Kumar dives deep into the forgotten history and modern science behind one of the most controversial components of our diet: seed oils. 

We’ll explore how linoleic acid—the dominant fat in seed oils—became a staple in the modern food supply, why its structure makes it chemically fragile and pro-inflammatory, and how its oxidation within LDL particles may be the real spark that ignites atherosclerosis. 

You’ll learn: 

Cardiovascular Disease Part 1: Is Saturated Fat Really the Villain? 

Description: 

In this first full episode of The Dr Kumar Discovery, we kick off a multi-part series on cardiovascular disease — a condition that touches nearly every family. 

Today, we take a critical look at the long-standing belief that saturated fat is the primary driver of heart disease. 

Where did this idea come from? How strong is the evidence? And have we overlooked something important along the way? 

From the early cholesterol discoveries to the Seven Co...

Dr. Kumar Discovery Podcast – Episode Zero

 
Title: Welcome to The Dr Kumar Discovery: A Journey Toward Honest Health

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Episode Summary

Welcome to the very first episode of the Dr. Kumar Discovery Podcast.

I’m Dr. Ravi Kumar—board-certified neurosurgeon, father of four, and someone who’s come to believe that real health lives far beyond prescriptions, numbers, and rigid dogma.

This show is for anyone who’s tired of being told “this is right” and “that is...