Sleep Cycles

Question 1

What are the four stages of sleep?

Answer 1

NREM stage 1: light sleep
NREM stage 2: body temp drops, hr slows, slow wave sleep occurs
NREM stage 3: blood pressure drops, breath rate drops,, deep slow way sleep occurs
REM: eyes move rapidly, dreams occur

Question 2

How many extra calories did sleep deprived people eat in one study?

Answer 2

Extra 600