Which is a major factor regulating sleep?
1) Electrical impulses transmitted to the cerebellum
2) Level of sympathetic nervous system stimulation
3) Amount of sleep a person has become accustomed
4) Amount of light received through the eyes
Question 2
Which of the following factors has the greatest positive effect on sleep quality?
1) Sleeping hours in synchrony with the person's circadian rhythm
2) Sleeping in a quiet environment
3) Spending additional time in stage IV of the sleep cycle
4) Napping on and off during the daytime