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FEBS Lett. 2008 Jan 9;582(1):142-51. Epub 2007 Aug 14.

Sleep and circadian rhythms: key components in the regulation of energy metabolism.

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Northwestern University, Department of Neurobiology and Physiology, 2205 Tech Drive, Hogan 2-160, Evanston, IL 60208-3520, United States.


In this review, we present evidence from human and animal studies to evaluate the hypothesis that sleep and circadian rhythms have direct impacts on energy metabolism, and represent important mechanisms underlying the major health epidemics of obesity and diabetes. The first part of this review will focus on studies that support the idea that sleep loss and obesity are "interacting epidemics." The second part will discuss recent evidence that the circadian clock system plays a fundamental role in energy metabolism at both the behavioral and molecular levels. These lines of research must be seen as in their infancy, but nevertheless, have provided a conceptual and experimental framework that potentially has great importance for understanding metabolic health and disease.

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