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Sleep-Wake Cycle Integrity

Meaning

Sleep-Wake Cycle Integrity refers to the robust, consistent, and synchronized functioning of the body’s endogenous circadian rhythm, ensuring a clear and healthy demarcation between periods of restorative sleep and periods of alert wakefulness. This integrity is governed by the master clock in the suprachiasmatic nucleus (SCN) and its influence on the cyclical release of hormones like melatonin and cortisol. Disruption, often caused by irregular schedules or light exposure, leads to fragmented sleep, impaired cognitive function, and systemic hormonal dysregulation. Maintaining this integrity is foundational for all health optimization efforts.