How Does Sleep Work?
Sleep works in cycles. Each night, we sleep for 3 to 6 cycles of 90 to 120 minutes. Our knowledge of sleep comes from the use of a technology called polysomnography. This is a test that uses electrodes to analyze brain activity, muscle activity, and eye movements during sleep.
Restless Legs Syndrome
What Happens When You Don't Get Enough Sleep?
Tips On Getting More Quality Sleep
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