Studies prove that There's More Than One Way to Sleep at http://t.co/qqKbPq7d9S
April 18, 2013
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There's More Than One Way to Sleep
Sleep remains one of biology's most confounding mysteries. We are just beginning to understand how it evolved, but defining this strange state of consciousness is incredibly difficult - especially because there are so many ways to experience it. Humans obviously love sleep. Like all mammals, we literally can't live without it.