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Deep Sleep Phases

Meaning

Deep Sleep Phases refer to the slow-wave sleep stages, scientifically designated as N3, which represent the most restorative segment of the non-rapid eye movement (NREM) sleep cycle. Characterized by high-amplitude, low-frequency delta brain waves, this phase is critical for physical restoration, metabolic regulation, and memory consolidation. The duration and quality of these phases are a direct reflection of an individual’s recovery status and overall neuro-hormonal balance. Adequate deep sleep is a non-negotiable component of physiological wellness.