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Nocturnal Growth Hormone Release

Meaning

The physiological phenomenon where the majority of daily Growth Hormone (GH) secretion occurs in pulsatile bursts, primarily during the deep, slow-wave stages of non-REM sleep. This nocturnal release is vital for cellular repair, lipolysis, protein synthesis, and maintaining optimal body composition. Its disruption is a clinical marker of poor sleep quality and can contribute to age-related decline in tissue health.