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Physcological fact #453.

Yawning is contagious. Even thinking about yawning is enough. After reading this, there is a 50% chance that you will yawn..

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Physcological fact #453. Yawning is contagious. Even thinking

11 faves · 1 comments · Dec 17, 2011 5:21pm

by

silentorchestra

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funny

3hannahbanana3 · 1 decade ago
...i yawned...
0 reply

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