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Light Exposure Hormonal

Meaning

Light Exposure Hormonal describes the fundamental influence of ambient light, particularly its spectrum and timing, on the regulation of the human endocrine system and the production of various hormones. This connection is mediated by the suprachiasmatic nucleus (SCN) in the hypothalamus, the body’s master clock, which uses light cues to synchronize circadian rhythms. Proper light exposure is essential for the timely release of hormones like cortisol, which dictates the wake cycle, and melatonin, which initiates the sleep cycle, profoundly affecting metabolic and stress resilience.