Notes
- Circadian rhythm: about a 24-hour cycle, set by light.
- Stages: NREM 1–3 (stage 3 is deep sleep) and REM (dreaming, brain active, body paralyzed).
- Disorders: insomnia, narcolepsy, sleep apnea, REM behavior disorder, sleepwalking.
- Theories of dreaming: activation-synthesis, consolidation.
Practice
Most vivid dreaming happens in:
Rapid eye movement.
Suddenly falling asleep during the day is:
Uncontrollable sleep attacks.
Jet lag disrupts the:
Internal clock.
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