+Circadian rhythm is a natural, internal process that regulates the [Sleep-wake cycle](/wiki/sleep_wake_cycle) and repeats roughly every 24 hours. These internal "body clocks" respond to cues like [Light](/wiki/light), influencing various physiological and behavioral patterns.
+## See also
+- [Chronobiology](/wiki/chronobiology)
+- [Melatonin](/wiki/melatonin)
+- [Jet lag](/wiki/jet_lag)
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