When volunteers are deprived of sunlight and other environmental time cues, their circadian rhythms tend to drift to their natural or intrinsic rhythm of about 24.2 hours a day.

Question

Quizplus · Accepted Answer

This is true, as studies have shown that without external time cues, the circadian rhythms of humans tend to become slightly longer than 24 hours, with an average intrinsic rhythm of about 24.2 hours.

When Volunteers Are Deprived of Sunlight and Other Environmental Time