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... In a new study, researchers found seniors who napped frequently were significantly more likely to develop dementia over the next decade, compared to people who rarely or never napped.

The findings, published in The Journals of Gerontology, Series A: Biological Sciences and Medical Sciences, don't mean that napping is driving cognitive decline, but they identify napping as a risk factor for dementia that we should pay more attention to.

"More frequent napping could be a marker of changes in the brain, rather than a cause of brain changes that lead to dementia," says psychologist and sleep researcher Adam Spira from Johns Hopkins University. ...

Do Oval Office naps count?