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SCN Master Clock Alignment

Meaning

SCN Master Clock Alignment is the clinical and behavioral objective of precisely synchronizing the activity of the Suprachiasmatic Nucleus (SCN), the brain’s central pacemaker, with the 24-hour external environment, primarily through the use of timed light exposure and behavioral cues. The SCN is the ultimate orchestrator of all internal circadian rhythms, including the rhythmic secretion of nearly all hormones. Achieving optimal alignment is foundational to preventing or correcting circadian misalignment, which is a major contributor to sleep disorders, metabolic syndrome, and widespread hormonal imbalance.