17 Sept 2025
1h 30m

Andrew Huberman, Ph.D. (Part 1)

Podcast cover

Tetragrammaton with Rick Rubin

The conversation explores the impact of light, circadian rhythms, and olfaction on overall well-being. It challenges common misconceptions about cortisol, emphasizing its role in energy deployment rather than stress, and the importance of morning sunlight for optimal cortisol levels and sleep. Discussion covers how long wavelength light from the sun charges mitochondria, boosting energy, and how our sense of smell profoundly influences our cognition, memory, and even gut health. The guest shares personal experiences and discusses the evolution of his podcast, highlighting a shift towards prioritizing scientific information and personal growth.

Outlines

Part 1: Cortisol and Circadian Biology

Part 2: Environmental Toxins and Sensory Health

Part 3: Reflections on Aging and Growth

Part 4: Creative Evolution and Tetragrammaton

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