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Health & Fitness

The Signal with Jonathan Jarecki

by Jonathan Jarecki
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Latest episodes

  • Environmental Signals That Shape Your Health | Cameron Borg, MS

    October 2, 2026 · 1 hr 32 min

    Cameron Borg, MSc, is a science writer and host of the Ricci Flow Nutrition Podcast, with a Master's degree in Medical Science majoring in Nutrition from The Karolinska Institute in Stockholm, Sweden, where he completed his thesis with the…

  • Why Sunlight Beats Vitamin D | Dr. Roger Seheult

    August 22, 2026 · 1 hr 21 min

    In this episode, my guest is Dr. Roger Seheult, MD, is a physician quadruple board-certified in internal medicine, pulmonary disease, critical care medicine, and sleep medicine, an Associate Clinical Professor at the University of…

  • Transform Your Mental Health With Sunlight | Dr. Sean Cain

    July 31, 2026 · 1 hr 40 min

    In this episode, my guest is Dr. Sean Cain, PhD, a Harvard Medical School-trained expert in the impact of light on the human circadian system, a Matthew Flinders Professor at Flinders University, and Co-Founder and CEO of Circadian Health…

  • Raised in a Holistic Household | A Conversation With My Mom

    July 27, 2026 · 2 hr 13 min

    My guest is my mom, Rosebud, a mother of four who spent fifty years building a life around preventative medicine. In this episode she tells her whole story: growing up with no money in Ozone Park, Queens; losing her father at three, her…

  • How Red Light Powers Your Mitochondria & Why LEDs Harm Your Health | Dr. Glen Jeffery

    June 29, 2026 · 1 hr 16 min

    In this episode, my guest is Dr. Glen Jeffery, PhD, a professor of neuroscience at University College London's Institute of Ophthalmology and a leading expert on how light interacts with mitochondria to shape health and aging.  Today, he…

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About the show

Welcome to the The Signal. In the episodes, I discuss a host of topics related to health, wellness, science, decentralized medicine, and optimal living. I get the opportunity to speak with and learn from brilliant, forward thinking individuals dedicated to health and science.