Jamie Zeitzer, MD

Jamie Zeitzer, MD Profile Photo

Dr. Jamie Zeitzer is a circadian physiologist who specializes in how light impacts circadian rhythms. He received his Ph.D. at Harvard, and is now Co-Director of the Center for Sleep and Circadian Sciences at Stanford University, where he is also an associate research professor of psychiatry and sleep medicine.

Dr. Zeitzer has published numerous studies on sleep, insomnia, circadian science, and even discovered a pioneering treatment for jetlag. Plus, he’s contributed to publications like The New York Times, The Washington Post, The Guardian, The Wall Street Journal, Consumer Reports, and NPR.

Dr. Zeitzer is a member of Stanford Bio-X, the Wu Tsai Human Performance Alliance, the Maternal & Child Health Research Institute (MCHRI), and the Wu Tsai Neurosciences Institute.

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July 16, 2026

Episode 139 | Light as a Conductor | How to Orchestrate Better Sleep, Mood, and Metabolism

Most of us live in a light-deprived world. We spend less than 15 minutes outside daily—despite thinking we're outdoors for hours—leaving our circadian rhythms dangerously misaligned. In this episode, Dr. Jamie Zeitzer and Lucas Tang of Lumos Glasses break down how light acts as a conductor, orchestrating every system in your body: your sleep, mood, metabolism, and immune function. You'll discover why the contrast between bright days and dark nights matters more than total light exposure, why morning light directly impacts serotonin production and depression risk, and how light therapy works synergistically with SSRIs. Whether you have outdoor access or not, they share practical, evidence-backed tools to reclaim your natural rhythm—from outdoor time to Lumos Glasses, a fashionable light-therapy solution for those who can't get consistent daylight. This episode cuts through outdated light-therapy advice and equips you with science-grounded strategies to transform your health from the in…