“It’s like a dishwasher,” says Dr. Maiken Nedergaard, a University of Rochester School of Medicine professor. You’d never guess she’s talking about your brain. It’s true — studies show that during sleep, your brain circulates cerebrospinal fluid throughout the brain and nervous system. It pumps new fluid into the brain to refresh the old fluid. […]
![Did you know your brain does chores while you sleep? Healthy Sleep!](http://wp.galleryfurniture.com/sleepcenter/wp-content/uploads/sites/4/2015/09/23565592_m-300x200.jpg)
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