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Stats: 1,402,918 members, 2,224,053 topics. Date: Wednesday, 29 July 2015 at 11:05 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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