Biological rhythm: Quick Facts

Written and fact-checked by

The Information Architects of Encyclopaedia Britannica

Facts

Also Known As	biorhythm • biological cycle

Videos

Nature's biological rhythms explained

What happens to a person's biological clock in isolation?

How biological clocks influence daily behavior

Study the experiment about chronobiology, the science that studies biological rhythms

See All Videos →

Topics

circadian rhythm monthly rhythm annual rhythm zeitgeber lunar tidal rhythm jet lag biological clock biological periodicity Photoperiodism

Dig Deeper: More Articles That Discuss This Topic

human endocrine system: Biorhythms

Key People

default image

Curt Paul Richter

American biologist