What makes yawning contagious?

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yawnEver seen a person yawn in public and discovered you were doing the same afterwards uncontrollably?

Have no fear yawning has been proven to be the most contagious condition in the world. Scientist for decades have tried to figure out why we as human beings yawn but it has been determined over the years that this involuntary action has no basis to draw a factual conclusion. But, scientists have determined that empathy—the ability to connect and understand other peoples emotional states, could be one of the reasons as to why we yawn after others.

So until next time don’t fight it yawn it.