IFLScience We Have Questions: Why Are Yawns Contagious?IFLScience We Have Questions: Why Are Yawns Contagious?Find out why this open-mouthed action seems to be so incredibly catching.Episode 11 of We Have Questions.Image credit: Anna.zabella/kichikimi/Yuriy Sosnitskiy/Shutterstock.com; modified by IFLScienceIt’s perhaps one of the greatest injustices of human bodily functions that the yawn has...
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