Not sleeping enough can shrink your brain, study says

Not Sleeping Enough Can Shrink Your Brain: Study

Turns out, a good night's sleep can prevent more than just tired eyes: Duke researchers in Singapore studied 66 Chinese adults through sleep surveys and MRI scans and found those who got less sleep showed a decline in cognitive function -- and smaller brains than when they first started the study.

Our brains already shrink as we age, but clocking in fewer hours on the pillow could cause that process to speed up. The scientists say this could be the reason behind the rise in dementia among older people.

Last year, there was an estimated 44 million people with dementia worldwide. According to Alzheimer's Disease International, that number is expected to increase to more than 75 million by 2030, and 135 million in 2050.

So if you need an excuse to grab a few extra hours under the covers, that seems like a pretty good one. As for how much you should be aiming for on the reg, scientists say adults need 7-8 hours every night.

More from
People who wear glasses are smarter, study claims
Study finds that good looking people are sick less often
Laptop battery explodes and burns owner
Read Full Story

Sign up for the Best Bites by AOL newsletter to get the most delicious recipes and hottest food trends delivered straight to your inbox every day.

Subscribe to our other newsletters

Emails may offer personalized content or ads. Learn more. You may unsubscribe any time.