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Mike Graham

on 9 January 2017

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Transcript of memmersyn,Lauren,Bella

memmersyn,Roaren Lauren,Bella

We yawn more when it is cold,and less when it's hot.
Why do you really yawn
really yawning isn't from tiredness or boredom because, we're just cooling our brain.
Temperture of the brain
Our brain temperture is increaseing when we yawn.
Going to bed and waking up
We yawn more when we wake up and go to bed.
When you start to yawn powerful strecthing of the jaw increces blood flows in the neck,face,and head.
Why do we yawn
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