Why do I sometimes have to yawn, but it didn't feel complete and I need to yawn again a few seconds later?

submitted 11 hours ago by

For a good yawn I need to really open my mouth and push/strain my jaw muscles. If that doesnt happen, then the yawn feels incomplete to my body and it happens again and again till it works “right”

What is the reason/body function behind that?

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Dookieman12

6 hours ago

We don’t even know why we yawn in the first place.

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