2. What determined the sleep habits of people in earlier times?
(a) The amount of work they had to do
(b) Day and night
(c) Their energy level
(a) None of the above
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Answer:
Sleep issues become more common as we age, often beginning in adolescents. ... Humans possess an internal 24-hour clock, also called the circadian pacemaker, that partly determines the time when people fall asleep and when they wake, as well as their alertness level while they are awake.
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Answer:
Sleep issues become more common as we age, often beginning in adolescents. ... Humans possess an internal 24-hour clock, also called the circadian pacemaker, that partly determines the time when people fall asleep and when they wake, as well as their alertness level while they are awake.
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