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Blink If Your Brain Needs a Rest, Osaka University Study  
12/28/2012 7:50:26 AM

Why do we spend roughly 10 percent of our waking hours with our eyes closed - blinking far more often than is actually necessary to keep our eyeballs lubricated? Scientists have pried open the answer to this mystery, finding that the human brain uses that tiny moment of shut-eye to power down.
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