Winston has a history of depression, and he notes that after a few days of hard studying and little sleep he notes decreases in his mood. Which of the following is the best explanation for Winston’s low mood?
A. After sleep deprivation, Winston spends significant time in N-REM sleep and sleeps for longer hours during the day.
B. After sleep deprivation, Winston has REM rebound, and as a result experiences a higher frequency of nightmares.
C. After sleep deprivation, Winston continues to have trouble sleeping and develops maintenance insomnia which is linked to depression.
D. After sleep deprivation, Winston has REM rebound, and high amounts of REM sleep have been linked to depression.
Answer: D
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