Helen works night shift at a local grocery store every other day.She has trouble sleeping,which is most likely due to:
A)excess of melatonin.
B)the fact that her circadian rhythms do not follow a 24-hour cycle.
C)the fact that she experiences fewer than normal periods of REM sleep per night.
D)a state called hypnagogic reverie.

Question

Quizplus · Accepted Answer

Helen's irregular sleep schedule could be disrupting her circadian rhythms, which are responsible for regulating sleep-wake cycles. This disruption can make it difficult for her to fall asleep and stay asleep during the day when she needs to rest.

Helen Works Night Shift at a Local Grocery Store Every