Why in the heck do we yawn?!


Question: Why in the heck do we yawn?
What causes it?
And dont say "tired" or "bordom"
Why do we yawn when we are tired or bored?

Answers:

When you body isn't getting enough oxygen it signals the brain to yawn which takes in a deep breath. This helps you stay alert and awake and focused! That's why if you're tired you yawn a lot.

A sign in my school nurse's office...I'm in there too much :/ xPP



I believe we yawn when our bodies need oxygen.




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