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Body's Clock Never Adjusts to Daylight Savings Time
Date:10/24/2007

reason to abandon daylight savings time, Ptacek added. "There may be societal benefits to daylight savings time, such as saving energy," he said. In any case, it is no more disruptive than the other things we do to manipulate time, he said.

Another expert believes daylight savings time isn't really useful, however.

"I don't think it is valuable to change to daylight savings time," said Ralph Downey III, the chief of sleep medicine at Loma Linda University Medical Center in California. "Five o'clock to the body clock is five o'clock," he said. "But, socially, things change, and that's also a time-giver."

More information

For more on the body's clock, visit the U.S. National Institute of Mental Health.



SOURCES: Till Roenneberg, Ph.D., Ludwig-Maximilians-University, Munich, Germany; Louis Ptacek, M.D.,investigator, Howard Hughes Medical Institute, John C. Coleman Distinguished Professorship in Neurodegenerative Diseases, professor, Department of Neurology, University of California, San Francisco; Ralph Downey III, Ph.D., chief, Sleep Medicine, Loma Linda University Medical Center, Loma Linda University Children's Hospital, Calif.; Oct. 24, 2007, online edition, Current Biology


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