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Human Photoregulation

Meaning

Human Photoregulation is the complex physiological process by which exposure to specific wavelengths, intensity, and timing of light modulates key biological functions, including the entire circadian rhythm, hormone secretion, and cellular metabolism. This process extends far beyond mere visual perception, acting as a primary environmental input that dictates the body’s internal timing and readiness for sleep, wakefulness, and energy expenditure. Effective photoregulation is central to maintaining robust endocrine health, stable mood, and overall psychological well-being.