See Also: Circadian rhythm(health)
circadian rhythm(medicine)
circadian rhythm(encyclopedia)
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circadian(medicine)
Circadian(health)
circadian(dictionary)
circadian(dictionary)
circadian clock(medicine)
CIRCADIAN Technologies Limited(finance)

circadian rhythm (medicine)


circadian rhythm


The regular recurrence, in cycles of about 24 hours, of biological processes or activities, such as sensitivity to drugs and stimuli, hormone secretion, sleeping, feeding, etc. This rhythm seems to be set by a 'biological clock' which seems to be set by recurring daylight and darkness.