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Stats: 1,705,600 members, 3,247,067 topics. Date: Saturday, 10 December 2016 at 11:46 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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