Racial differences in the human endogenous circadian period.

The length of the endogenous period of the human circadian clock (tau) is slightly greater than 24 hours. There are individual differences in tau, which influence the phase angle of entrainment to the light/dark (LD) cycle, and in doing so contribute to morningness-eveningness. We have recently repo...

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Bibliographic Details
Main Authors: Mark R Smith, Helen J Burgess, Louis F Fogg, Charmane I Eastman
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2009-06-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC2699031?pdf=render