Rhythms,Diurnal

《英文msh词典》Rhythms,Diurnal
[入口词] Rhythms,Diurnal
[主题词] Circadian Rhythm
[英文释义] 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.