Researchers find on-off switch between sleep and wakefulness
from By Dorothy L. Tengler
From Aug. 17:
Sufficient sleep is increasingly being recognized as an essential aspect of chronic disease prevention and health promotion. Sleeping less than seven hours per night is associated with increased risk for obesity, diabetes, heart disease, stroke and frequent mental distress. But what about those of us who can't seem to fall asleep? And what happens in our brains to wake us up? Researchers have discovered a switch in our brains that flips on and off to cause us to sleep or wake us up.
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