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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 facilitates cooling of the brain, explains Epstein. This happens via blood flow, the inhalation of cool air, and the occasional tearing of the eyes. It has also been found that yawning ...
Exhalation (or expiration) is the flow of the breath out of an organism. In animals, it is the movement of air from the lungs out of the airways , to the external environment during breathing . This happens due to elastic properties of the lungs, as well as the internal intercostal muscles which lower the rib cage and decrease thoracic volume.
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 ...
The effectiveness of the "yawning" method can be improved with practice; some people can achieve release or opening by moving their jaw forward or forward and down, rather than straight down as in a classical yawn, [6] and some can do so without moving their jaw at all by activating the tensor tympani muscle, which is heard by the individual as ...
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 ...
Shortness of breath (SOB), known as dyspnea (in AmE) or dyspnoea (in BrE), is an uncomfortable feeling of not being able to breathe well enough. The American Thoracic Society defines it as "a subjective experience of breathing discomfort that consists of qualitatively distinct sensations that vary in intensity", and recommends evaluating dyspnea by assessing the intensity of its distinct ...
A simple treatment involves increasing the partial pressure of CO 2 and inhibiting diaphragm activity by holding one's breath or rebreathing into a paper bag. [30] Other potential remedies suggested by NHS Choices include pulling the knees up to the chest and leaning forward, sipping ice-cold water and swallowing some granulated sugar.