Overview of circadian rhythms

Martha Hotz Vitaterna, Joseph S. Takahashi, Fred W. Turek

Research output: Contribution to journalArticle

109 Scopus citations

Abstract

The daily light-dark cycle governs rhythmic changes in the behavior and/or physiology of most species. Studies have found that these changes are governed by a biological clock, which in mammals is located in two brain areas called the suprachiasmatic nuclei. The circadian cycles established by this clock occur throughout nature and have a period of approximately 24 hours. In addition, these circadian cycles can be synchronized to external time signals but also can persist in the absence of such signals. Studies have found that the internal clock consists of an array of genes and the protein products they encode, which regulate various physiological processes throughout the body. Disruptions of the biological rhythms can impair the health and well-being of the organism.

Original languageEnglish (US)
Pages (from-to)85-93
Number of pages9
JournalAlcohol Research and Health
Volume25
Issue number2
StatePublished - Dec 1 2001

Keywords

  • Biological adaptation
  • Biological regulation
  • Circadian rhythm
  • Gene expression
  • Hypothalamus
  • Light
  • Mutagenesis
  • Neural cell
  • Physiological AODE (effects of alcohol or other drug use, abuse, and dependence
  • Sleep disorder
  • Temperature
  • Time of day

ASJC Scopus subject areas

  • Medicine (miscellaneous)

Fingerprint Dive into the research topics of 'Overview of circadian rhythms'. Together they form a unique fingerprint.

  • Cite this

    Vitaterna, M. H., Takahashi, J. S., & Turek, F. W. (2001). Overview of circadian rhythms. Alcohol Research and Health, 25(2), 85-93.