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What is the circadian rhythm?

Dr Louisa Draper

"Jet lag can cause symptoms like excessive sleepiness and a lack of alertness during the day. It happens to people who travel across time zones."

Dr Louisa Draper

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The circadian rhythm is a 24-hour biological clock which regulates processes in the body including sleep and body temperature. It relies on different cues including light and darkness which trigger the impulse to wake up, go to sleep and eat.

Further Reading