Sleep
Deep Sleep
Deep sleep (slow-wave sleep) is the stage when physical repair, growth hormone release, and immune work peak. It clusters in the first half of the night and is sensitive to alcohol, late screens, and irregular bedtimes.
Deep sleep (slow-wave sleep) is the stage when physical repair, growth hormone release, and immune work peak. It clusters in the first half of the night and is sensitive to alcohol, late screens, and irregular bedtimes.
Too little deep sleep leaves you sore and flat even if total hours look fine.
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