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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.
Reasons we we yawn. It was once believed that the main function of yawning was to increase otherwise low oxygen levels, but a 1987 study disproved that theory. And despite extensive additional ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 14 January 2025. 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 ...
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It found that young people are more apt to "catch" a yawn than older people. 328 participants were asked to watch a three-minute video of people yawning and to keep track of how many times they ...
Drowsiness, yawning, disinclination for work, lack of social participation, mood changes, apathy, sleep disturbances, other fatigue-related symptoms The sopite syndrome ( / s oʊ ˈ p aɪ t / ; from Latin sopire 'to put to sleep') [ 1 ] is a neurological disorder that relates symptoms of fatigue , drowsiness , and mood changes to prolonged ...
During faucalized voice, the sides of pharynx expand outward and the larynx descends and tilts forward. The term "yawny voice" is appropriate to compare this voice quality to the physiological act of yawning. Its opposite is harsh voice, a vocal quality produced when the pharynx is contracted and the larynx raised.
The book is written in the style of a reporter on the news who is reporting on the number of sleepers in the world. The book starts with a "very small bug" named Van Vleck yawning. The narrator then tells the reader that this is very important news and goes on to explain that a yawn is contagious and will cause sleep across the countryside.