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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.
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 ...
In a new study, researchers from the University of Nottingham looked at the brain to determine what makes yawning contagious.
Yawning is considered a non-respiratory gas movement. A non-respiratory gas movement is another process that moves air in and out of the lungs that do not include breathing. Yawning is a reflex that tends to disrupt the normal breathing rhythm and is believed to be contagious as well. [14] The reason why we yawn is unknown.
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.
Chimpanzees, gorillas and orangutans show laughter-like vocalizations in response to physical contact such as wrestling, play chasing or tickling.Some orangutans also react with laughter at magic tricks performed by humans.
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This is an accepted version of this page This is the latest accepted revision, reviewed on 2 December 2024. This is a list of onomatopoeias, i.e. words that imitate, resemble, or suggest the source of the sound that they describe. For more information, see the linked articles. Human vocal sounds Achoo, Atishoo, the sound of a sneeze Ahem, a sound made to clear the throat or to draw attention ...