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Sleep Cycle Consistency

Meaning

Sleep Cycle Consistency refers to the minimal day-to-day variation in an individual’s sleep and wake times, a behavioral practice essential for maintaining a robust and properly synchronized circadian rhythm. Clinically, high consistency minimizes “social jet lag,” thereby preventing the metabolic and hormonal disruption that occurs when the internal clock is constantly shifted. This stability supports the predictable timing of nocturnal hormone secretion and maximizes the restorative quality of deep and REM sleep phases. It is a foundational element of chronotherapy and metabolic health.