Many of our body's functions are synchronized with the appearance and disappearance of light.
Circadian Rhythm: Your Body Clock
Circadian Rhythm and Your Brain's Clock
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Key Facts In This Video
The body's systems follow a circadian rhythm, which is synchronized with the rise and set of the sun. 00:37
Humans are generally the only species who subscribe to a once-a-day sleeping pattern. 02:18
Constant disruptions from our regular sleep patterns can be linked to diabetes, obesity and depression. 02:54