
After two decades in medicine, I started questioning everything.
Dr. Ravi Kumar is a board-certified neurosurgeon who left the operating room to explore the questions that matter most about your health.
Listen to the PodcastEvery week, I cut through the noise of health headlines and marketing claims to bring you what the research actually says. No dogma, no agenda, just an honest look at the science that shapes how you live, heal, and thrive.
Episode 48: Nitric Oxide: The Essential Molecule for Life & Longevity | Dr. Nathan Bryan
Dr. Ravi Kumar sits down with Dr. Nathan Bryan, one of the world's leading experts in nitric oxide biology, to unpack why nitric oxide is a foundational signaling molecule that controls blood flow, oxygen delivery, and cellular energy in every tissue of the body. They break down the two fountains of NO production (the NOS enzyme and the oral nitrate pathway), why mouthwash, fluoride toothpaste, and antacids quietly sabotage them both, why erectile dysfunction is the canary in the coal mine for systemic NO deficiency, and the practical roadmap for restoration through diet, intermittent fasting, sunlight, and targeted supplementation.
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A neurosurgeon who started questioning everything
Dr. Ravi Kumar is a board-certified neurosurgeon and assistant professor of neurosurgery at the University of North Carolina. After years in the operating room, a transformative sabbatical in India changed how he saw medicine forever.
Now, through The Dr. Kumar Discovery, he explores the intersection of modern science, traditional wisdom, and the questions most doctors never think to ask.
Read the full storyBrowse Episodes
Episode 46: Q&A: The Science of PTSD Recovery: New Treatments, Brain Biology, & Generational Trauma
Episode 45: Trauma, Memory, and the Mind: How PTSD Forms and How It Can Be Treated
Episode 44: PTSD: The Alarm That Won't Shut Off
Episode 43: Q&A: Is Your Magnesium Test Lying? (Blood Pressure, Sleep & Form Guide)
Episode 42: Magnesium Explained: The Overlooked Nutrient Behind Energy, Sleep, and Stress Control
What Listeners Are Saying
★★★★★"So glad I found this podcast. Dr. Kumar doesn't want you to just mask symptoms, he wants you to understand root causes and help you truly heal. He is the best of both worlds - he shares a wealth of modern medical knowledge, but also empowers the listeners to take personal responsibility for their health."
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★★★★★"I love this podcast! It's smart and covers the science in very accessible ways. After each episode I feel empowered to make some changes in my life. Thanks, Dr. Kumar!"
Dr Kumar Review
★★★★★"Dr Kumar's podcasts have been such a great find! As an OR nurse I have worked with neurosurgeons for years. I found the podcasts to be informative, easy to follow and just the right length."
NRRN66
Reviews from Apple Podcasts