Can a Nap Boost Brain Health? – Johns Hopkins

Are you feeling a little guilty about your daily, mid-afternoon snooze? Don’t. Research shows that catching a few ZZZs after lunch can be good for your brain. But keep in mind that the length of your nap matters. 

While a 30- to 90-minute nap in older adults appears to have brain benefits, anything longer than an hour and a half may create problems with cognition, the ability to think and form memories, according to the study published in the Journal of the American Geriatrics Society

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“I consider napping to be a good thing, but it needs to be taken in the context of the person and his or her own sleep cycles and body,” says Charlene Gamaldo, M.D., medical director of Johns Hopkins Sleep Disorders Center. For older people, as the study showed, longer naps tend to interfere with cognition, she says.

Napping for a better brain

Researchers looked at data from 2,974 people in China ages 65 and older. Nearly 60 percent of participants reported napping after lunch for about an hour.

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