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Stats: 1,477,662 members, 2,502,862 topics. Date: Friday, 27 November 2015 at 08:05 PM
|Why Do We Yawn? by 9jamum(f): 11:22am On Nov 26, 2011|
Is it because one is being tired, bored or oxygen deprived, or low temperature of the brain?
What is excessive yawning?
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