« Previous Page

Circadian Rhythms

Circadian Rhythms

Circadian rhythms are the 24-hour cycles of physical and mental changes that are driven by your body's "biological clock." They are influenced both by things inside your body and by things in your environment, especially light. Your circadian rhythms affect your sleep-wake cycle, your body temperature, and other important body functions.

Last Revised: March 14, 2013

Author: Healthwise Staff

Medical Review: Kathleen Romito, MD - Family Medicine & Alfred Lewy, MD, PhD - Psychiatry

This information does not replace the advice of a doctor. Healthwise, Incorporated disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. How this information was developed to help you make better health decisions.

© 1995-2014 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.

× Alternate Text