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Nocturnal Hormone Signaling

Meaning

Nocturnal Hormone Signaling refers to the specific, time-sensitive patterns of endocrine secretion and receptor sensitivity that occur exclusively during the hours of sleep and darkness, fundamentally governed by the circadian rhythm. This signaling is critical for restorative physiological processes, notably the pulsatile release of Growth Hormone (GH) and the suppression of Cortisol, alongside the production of melatonin. The integrity of this nocturnal endocrine activity is paramount for tissue repair, immune system modulation, metabolic regulation, and memory consolidation. Disruptions to this signaling cascade are directly linked to metabolic dysfunction and accelerated aging.