How Yawning Could Help Cool Down Your Brain

  • Uploaded by Newsy on May 12, 2014
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A new study suggests yawning is linked to cooling down people's brains. The more overheated people's heads were, the more they Brice Sander: more at : ScienceDirect YouTube Flickr Flickr Daily Mail Walt Disney Studios Time TED Via: Flickr / nate2009

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