Study: Brain connections strengthen during waking hours, weaken during sleep

Most people know it from experience: After so many hours of being awake, your brain feels unable to absorb any more-and several hours of sleep will refresh it.

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<p><a href="http://www.physorg.com/news120059987.html">Study: Brain connections strengthen during waking hours, weaken during sleep</a></p> <p>Most people know it from experience: After so many hours of being awake, your brain feels unable to absorb any more-and several hours of sleep will refresh it.</p>