Science Probes Secrets Of "Contagious Yawning," Duke University Study
3/18/2014 6:26:31 AM
If watching other people yawn makes you yawn in response, don't chalk it up to empathy. A new study challenges the supposed link between "contagious" yawning and being on the same emotional wavelength. Contagious yawning is well documented and occurs in response to seeing, thinking or hearing about yawning. It's different than spontaneous yawning, which is linked with being tired or bored.
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