Saturday, June 18, 2016

Can't get your caffeine buzz on? Maybe you need more sleep

By Robert Preidt June 17, 2016

Caffeine no longer improves alertness or mental performance after a few nights of sleep restriction, according to a new U.S. military study.

"These results are important, because caffeine is a stimulant widely used to counteract performance decline following periods of restricted sleep," said lead author Tracy Jill Doty. She is a research scientist at Walter Reed Army Institute of Research in Silver Spring, Md.

"The data from this study suggests that the same effective daily dose of caffeine is not sufficient to prevent performance decline over multiple days of restricted sleep," Doty said in an American Academy of Sleep Medicine news release.


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