Archived Columns
January 7, 2002
The Absolute Essentials: What everyone must know about sleep.
- Major characteristic that differentiates sleep from wakefulness is the shutdown of perception. At the moment of sleep, we are instantly blind and deaf.
- Sleep debt: sleep need, sleep deprivation, extra sleep.
- Biological rhythms and clock-dependent alerting.
- The subjective side of the coin: Drowsiness is Red Alert.
- Getting the sleep we need and how good it feels.
- Symptoms of very common sleep disorders.
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