Overview
Related questions
Overview
Related questions
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Circadian rhythm
The circadian rhythm (biological clock) is the daily cycle of physical and mental activity in the body, based on a 24-hour period. The circadian rhythm helps regulate a person's sleep/wake cycle, and is affected by variations in the environment, such as the amount of daylight, the length of the night, the intensity of light, etc...
How long it usually lasts:
Chronic (lasts years to lifelong)
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A 36-year-old member asked:
What's your circadian rhythm based on?
1 doctor answer2 doctors weighed in
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