ChatterBank3 mins ago
Yawning
12 Answers
Why do you yawn when you're tired? And why does one person yawing make others yawn?
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For more on marking an answer as the "Best Answer", please visit our FAQ.A few theories:
http://www.coolquiz.com/trivia/explain/docs/ya wn.asp
Mainly to do with oxygen, carbon dioxide and the power of suggestion!
http://www.coolquiz.com/trivia/explain/docs/ya wn.asp
Mainly to do with oxygen, carbon dioxide and the power of suggestion!
https://www.youtube.com/watch?v=vEJy-xtHfHY
i know what you mean its like trying not to lick your lips when you eat a doughnut
i know what you mean its like trying not to lick your lips when you eat a doughnut