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Stats: 1,589,695 members, 2,870,966 topics. Date: Monday, 30 May 2016 at 07:55 AM
|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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