Circadian rhythms


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Circadian rhythms


Circadian rhythm's or 24-hour cycles are driven by the body's "biological clock." The "biological clock" is regulated by light or darkness, which can make the body think it is time to sleep or wake up.

The 24-hour circadian rhythm controls functions such as:

  • Sleeping and waking.
  • Body temperature.
  • The balance of body fluids.
  • The way other body systems function.

Credits


Author Jeannette Curtis
Author Caroline Rea, RN, BS, MS
Editor Kathleen M. Ariss, MS
Editor Susan Van Houten, RN, BSN, MBA
Associate Editor Tracy Landauer
Associate Editor Pat Truman, MATC
Primary Medical Reviewer Patrice Burgess, MD - Family Medicine
Primary Medical Reviewer Adam Husney, MD - Family Medicine
Primary Medical Reviewer Kathleen Romito, MD - Family Medicine
Last Updated May 25, 2007

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Last updated: May 25, 2007
Author: Caroline Rea, RN, BS, MS
Reviewed By: Kathleen Romito, MD - Family Medicine
Editors: Susan Van Houten, RN, BSN, MBA, Pat Truman, MATC

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