Circadian rhythm
From Ganfyd
A time dependent biological rhythm roughly synchronised to the earths day-light night time 24 hour pattern. Light is used in man to provide better synchronisation via for example the hypothalamic suprachiasmatic nuclei but the imperfect feedback leads to significant conditions such as jet-lag.
Web Resources for Circadian rhythm
Relevant Clinical Literature
UK Guidance
Other Wikis
Medpedia on Circadian rhythm (Less technical, good quality control)
Wikipedia on Circadian rhythm (Less technical, ? quality control)
Examples include:
- Secretion of melatonin which induces sleepiness. The secretion is maximal at night and is involved in the regulation of sleep and wake.
- Secretion of ACTH
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