Why do we need sleep? Perhaps to clear toxic buildup…

A study from the University of Rochester suggests that sleep is the time where the body can flush out toxins from the brain, toxics that build up during the day while the brain is working very hard. That does seem sensible enough to be true.

You can see more by following this link – http://www.urmc.rochester.edu/news/story/index.cfm?id=3956

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