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Light Hygiene Implementation

Meaning

Light Hygiene Implementation refers to the deliberate, structured management of an individual’s exposure to specific wavelengths and intensities of environmental light throughout the precise 24-hour cycle to optimize circadian rhythm alignment and neuroendocrine function. This practice involves maximizing bright, blue-rich light exposure during the day and systematically minimizing blue and white light exposure in the late evening and night. It is a powerful, non-pharmacological intervention with profound and measurable effects on sleep quality, mood regulation, and metabolic homeostasis.