Sun and MelatoninMelatonin, a hormone that regulates sleep and wake cycles, can be influenced by sunlight exposure. Sunlight helps regulate the body's internal clock, promoting the production of melatonin in the evening and reducing it during the day. Exposure to sunlight, particularly in the morning, can boost melatonin production at night, improving sleep quality.
Sunlight contains a spectrum of wavelengths, including near-infrared light (NIR), which can penetrate the skin and reach mitochondria in cells. When mitochondria absorb NIR photons, it can trigger the release of nitric oxide (NO), which may promote melatonin synthesis.
