Sleep Flashcards
1
Q
Stages of Sleep
A
Slow wave sleep
Stage 1 to Stage 5 (REM sleep)
Sleep cycles through these stages
2
Q
Slow Wave Sleep
A
Relatively awake and alert
Brain slows down
Beta then alpha waves
3
Q
Stage 1
A
Light Sleep
Slow heart rate, reduced muscle tension
Theta Waves
4
Q
Stage 2
A
Body Temperature decreases; heart rate reduces
Burst of rapid rhythmic sleep spindles
Sleep talking
5
Q
Stage 3
A
Transition between light and deep sleep
Very Slow Delta Waves
Bed wetting, night terrors, sleepwalking, gibberish sleep talking
6
Q
Stage 4
A
Deep Sleep
Even more slow
Delta Waves
Bedwetting, night terrors, sleepwalking, gibberish sleep talking
7
Q
Stage 5
A
REM Sleep (Paradoxical)
Active brain activity & deeply relaxed muscles
Dreaming, visual imagery, nightmares
