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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 ...
Guttmann and Dopart determined that a yawn causes one of three possible situations to occur: the brain cools down due to an influx or outflux of oxygen; pressure in the brain is reduced by an outflux of oxygen; or the pressure of the brain is increased by an influx of air caused by increased cranial space.
Causes Narcolepsy , idiopathic hypersomnia , circadian rhythm sleep disorder , sleep apnea , others Excessive daytime sleepiness ( EDS ) is characterized by persistent sleepiness and often a general lack of energy, even during the day after apparently adequate or even prolonged nighttime sleep.
Yawning. We all do it and yet there's no set explanation on why we do it. And just as mysterious is that the act of yawning seems to be contagious. A new study looking at that issue has found that ...
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 ...
People may experience warning symptoms right before the headache, such as excessive yawning, increased hunger or tearing of the eyes. "Some individuals also experience aura, a neurological ...
According to the BBC, previous studies suggesting contagious yawning shows how empathetic you are may not be that concrete. And here we thought we were all just super nice people. Show comments
The causes of hypnic jerk are yet unclear and under study. None of the several theories that have attempted to explain it have been fully accepted. [ 9 ] One hypothesis posits that the hypnic jerk is a form of reflex , initiated in response to normal bodily events during the lead-up to the first stages of sleep, including a decrease in blood ...