Is it true that when you yawn, its your bodies natural defenses stealing other p!


Question:

Is it true that when you yawn, its your bodies natural defenses stealing other people's air?

I just heard it at college today, sounds stupid- but hey i'm curious to know! If that isn't the answer, is there any other reason?!? I'm sure its not just becuase we're tired?!??!?!?! Thanksssss!


Answers:

A yawn is the bodies reaction to a lack of oxygen to the brain!


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