Non-REM Sleep

Vitamin D increases non-REM deep delta wave sleep, which dominates the first half of the sleep cycle. Deep delta wave sleep is the most physically restorative phase of the sleep cycle. Vitamin D deficiency is associated with disrupted or r…

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Vitamin D increases non-REM deep delta wave sleep, which dominates the first half of the sleep cycle. Deep delta wave sleep is the most physically restorative phase of the sleep cycle. Vitamin D deficiency is associated with disrupted or reduced access to deep non-REM sleep.