Non-REM sleep is called slow-wave sleep because :

Non-REM sleep is called slow-wave sleep because
 
  A) there is slow eye movement during this stage.
  B) this is the deepest stage of sleep.
  C) the brain generates theta and delta waves.
  D) it is the stage during which dreams occur.

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According to current research, most adults function best with how many hours of sleep per night?
 
  A) 7-8
  B) 4-5
  C) 5-6
  D) 9-10

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Due to her job, Jessica sleeps 5 to 6 hours per night on weekends. Which of the following is the BEST strategy for her to resolve her sleep debt?
 
  A) She can't make up for her lost sleep.
  B) She can sleep 12 hours one night per week and 6 to 7 hours the other nights.
  C) She can readjust her circadian rhythm by sleeping 5 to 6 hours every night.
  D) She can sleep 9 hours per night Monday through Friday.

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The disruption of which factor results in jet lag?
 
  A) blood pressure
  B) natural light
  C) circadian rhythm
  D) blood glucose level

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Which of the following decreases the effect of melatonin?
 
  A) alcohol
  B) tryptophan
  C) muscle relaxants
  D) caffeine