Your Brain Has Its Own Cleaning System That Helps Prevent Alzheimer’s. Science Is Learning How to Repair It 

Your brain basically runs its own internal wash cycle while you sleep. Science is unraveling what happens when the system breaks down and how to fix it. 

EXPERT OPINION BY JESSICA STILLMAN, CONTRIBUTOR, INC.COM @ENTRYLEVELREBEL

Why do humans sleep? Researchers who have suggested a variety of reasons. 

Sleep........

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