Have you ever wondered why yawning is contagious?

It may be a way to bond with your fellow human being, but scientists have other theories.

Yawning can also function as a reflex toequalize air pressure in your ears.

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Why Is Yawning Contagious?

Below, she walks you through a few theories.

Its Amazing How Its All Connected.

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psychology professor and founder ofThe Academy of Cognitive and Behavioral Neuroscience

Have you ever tried to stop a yawn in the middle of it?!?

Yep, it cant be done!

So, essentially, once a human begins to yawn, this hard-wired behavioral response must run its course.

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For example, if I cross my arms, you might do the same.

So if someone is seeing me scratch my face, they would know what it feels like.

You may be compelled to do it too.

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It is common and usually is totally benign.

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psychology professor and founder ofThe Academy of Cognitive and Behavioral Neuroscience

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