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October 2013

A Good Night’s Sleep Really Does ‘Clear the Mind’

Why do we sleep?  It is a question that has long puzzled scientists and philosophers alike.  While the ancient Greeks saw sleep as a doorway to the divine, scientists and biologists see it as an invitation to be devoured by nocturnal predators.  A new study – appearing today in the journal Science – may provide the answer: when we sleep our brain ‘takes out the trash.’

10/17/2013 | 6 comments