A large sleep study says sleeping too much or too little is bad for your brain.
Sleep makes up one-third of our entire lives, but there’s still so much we don’t know about it. To get some answers, researchers from Western University’s Brain and Mind Institute in Canada set up the largest sleep study to date.
It found that optimal amount to keep your brain functioning at its best is seven to eight hours, even though many think they can get by just fine on six hours a night.
“And the problem is not only the health consequences, but your efficiency goes down,” said Michael Yurcheshen, co-director, UR Sleep Center. “You’re getting that extra half hour, 45 minutes in your day, but you’re spending a lot of time spinning the wheel.”
The study also found getting too much sleep has negative consequences including increasing the risk of stroke, cognitive impairment, and depression.