Scientists may have just solved one of life’s biggest mysteries: Why yawning is contagious

[Guest Brad Reed]

Life is filled with little mysteries, one of which is why we're more likely to yawn when others around us . However, new research from the University of Vienna suggests that group yawning is actually a survival mechanism that has the side effect of cooling off our brains, which in turn makes us more alert and less likely to doze off.

 

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Via BRG - Boy Genius Report