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Light Curfew Discipline

Meaning

Light Curfew Discipline refers to the deliberate and rigorous practice of minimizing exposure to all forms of bright and, specifically, blue-spectrum light during the hours preceding habitual sleep onset. This behavioral strategy is a cornerstone of chronobiology-informed sleep hygiene, recognizing that light is the most potent external regulator of the human circadian rhythm. Strict adherence to this discipline is essential for allowing the pineal gland to initiate the necessary, uninhibited secretion of melatonin, a critical hormone for signaling darkness and promoting sleep readiness. Failure to maintain this curfew results in circadian phase delay and compromised sleep quality.