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Yawning Is More Contagious For The Young, Study...
A recent study has found a link between age and yawning, in which increased age lessens the chances of "catching" someone else's yawn.
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Yawning Is More Contagious For The Young, Study Says
A recent study has found a link between age and yawning, in which increased age lessens the chances of "catching" someone else's yawn.
Date: 3/15/14
Views: 87
Video by:  Newsy
 
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