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NREM Sleep

Meaning

NREM (Non-Rapid Eye Movement) sleep is a crucial, non-dreaming stage of the sleep cycle, encompassing three distinct substages characterized by progressively slower brain waves. This phase is physiologically distinct from REM sleep, representing a period of deep physical and cerebral rest and restoration. During NREM sleep, the body performs essential restorative functions, including the majority of growth hormone secretion and significant metabolic regulation. Optimizing the duration and quality of NREM is paramount for endocrine health, cognitive function, and overall regenerative capacity.