We do not know a lot about yawning, aside the fact that it is contagious. According to The Huffington Post, there are many theories about why we yawn, including the most widely accepted reason; it’s a display of empathy. Past research has supported the theory that the closer our relationship is to a person, the more […]
![Contagious Yawning May Be Linked to Age Study: Yawning May Be Linked To Age Instead Of Empathy](http://wp.galleryfurniture.com/wp-content/uploads/sites/4/2014/03/16465257_m-300x300.jpg)
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