Yawning

- - Latest reply:  Yaroven - Mar 10, 2012 at 02:53 PM
Hello,
What makes someone yawn please?
Thanks in advance.
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2 replies

0
Thank you
Hello
Yawning is an involuntary opening of the mouth wide, and taking a deep breath. Often it is due to boredom. Watch everyone else yawn when you yawn! Good luck
Respond to Anju
0
Thank you
Hello,
It is not only out of boredom, you will also yawn when you feel sleepy. On the whole, it happens when your body is lacking enough oxygen, take care.
Respond to Yaroven