Regenerative Health with Max Gulhane, MD Why the Light Dark Cycle is the Foundation of Health | Dr Max Gulhane on MediSun Podcast
Aug 11, 2025
Brett Hanson, host of The MediSun podcast and a champion of quantum circadian health, joins Dr. Max Gulhane to discuss the importance of the light-dark cycle for health. They delve into how sunlight energizes our cells and the critical role of near-infrared light. The conversation shifts to vitamin D's effects on immunity and its relationship with melanoma. Listeners also learn about balancing sun exposure, the need for natural light in modern life, and how to integrate these principles into holistic wellness practices.
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Light‑Dark Cycle Is The Biological Foundation
- The light-dark cycle is the foundational biological signal that programs hormones, mitochondria, and repair processes.
- Disrupting daytime sunlight and nighttime darkness drives mitochondrial dysfunction and chronic disease.
Sunlight Acts As Cellular Energy Input
- Daylight itself supplies photonic energy that aids mitochondrial oxidative phosphorylation.
- Removing sunlight makes mitochondria less efficient and contributes to metabolic disease.
Use Sunrise To Set Your Cortisol Rhythm
- Wake with natural sunrise light to trigger an appropriate cortisol rise and entrain circadian timing.
- Get early outdoor blue light rather than artificial device light to properly set your day.