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REM Sleep Cycles

Meaning

The distinct phases of sleep characterized by Rapid Eye Movement (REM), a state of high brain activity resembling wakefulness, where most dreaming occurs. REM sleep is physiologically essential for cognitive functions, including memory consolidation, emotional regulation, and synaptic plasticity. Hormonally, this phase is associated with distinct patterns of secretion, including surges in growth hormone and prolactin, which are vital for repair and immune function. Disruption of these cycles has significant clinical implications for neurocognitive health and endocrine balance.