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[Video available to view at the link below.]
Until recently, sleep was something of a mystery to us. Scientists didn't know why we slept -- and they thought that when the body was at rest, the brain was, too.
Now, we know better. The brain performs a number of important activities while we're unconscious, according to new neuroscience research.
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To finish reading the full article and view the video clip, visit The Huffington Post: Sleep & Wellness website: http://huff.to/1ZF7KTW.
