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In a new study, researchers from the University of Nottingham looked at the brain to determine what makes yawning contagious. The BBC reports it happens in the part of the brain that controls ...
Merely thinking about or seeing someone yawning can make you yawn. But why?
A yawn is a reflex in vertebrate animals characterized by a long inspiratory phase with gradual mouth gaping, followed by a brief climax (or acme) with muscle stretching, and a rapid expiratory phase with muscle relaxation, which typically lasts a few seconds.
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Yawning: It is yet to be established what the biological or social purpose of yawning is. [25] Heritable components of homosexuality: How to reconcile evolution with the heritable components of human homosexuality? Homosexuality is prevalent across human societies, past and present. These facts constitute an evolutionary puzzle.
The post Here’s Why Yawning Is Contagious appeared first on Reader's Digest. But why is yawning contagious? Turns out, humans aren't the only animals with a case of the big yawns.
328 participants were asked to watch a three-minute video of people yawning and to keep track of how many times they yawned. Of the 328 participants, 222 contagiously yawned.
Yawning often feels involuntary—it’s triggered by the same part of the brain as sneezing, Sullivan says. But the difference is, a yawn can be controlled from “the top down” if you think ...