10/18/2026
Vital Signs · medicine

Scientists discover how deep sleep builds muscle, burns fat, and boosts the brain

Filed by Dr. Iris Vale
Scientists discover how deep sleep builds muscle, burns fat, and boosts the brain
Scientists have discovered a surprising two-way relationship between sleep and growth hormone, revealing how the brain carefully balances physical recovery with wakefulness. The findings could help explain why poor sleep harms metabolism and brain health, potentially opening the door to new treatments for sleep and neurological disorders.
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Dr. Iris Vale
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Scientists discover how deep sleep builds muscle, burns fat, and boosts the brain — Vital Signs