The sleep/wake cycle and body temperature cycles are usually synchronized in humans.

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Quizplus · Accepted Answer

The sleep/wake cycle and body temperature cycles are regulated by the circadian rhythm and are usually synchronized in humans. The body temperature is low during sleep and increases towards the end of the sleep cycle, peaking during the daytime. This synchronization is important for maintaining a regular sleep/wake schedule and optimal bodily functions.

The Sleep/wake Cycle and Body Temperature Cycles Are Usually Synchronized