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Yawn Yawning Brain Oxygen
Why do people yawn? I heard yawning is a sign that your brain isn't getting enough oxygen. Is this true?
True: Yawning is a sign of tiredness. Additionally, when your carbon dioxide (the gas given off with exhaling) level starts to rise in your body, it does stimulate the brain to cause you to yawn. The theory is that the yawning will cause you to take a deep breath and inhale more oxygen and exhale the excess carbon dioxide. ...Read moreSee 1 more doctor answer
Yawning is opening the mouth semi-voluntarily while taking a long, deep breath of air. It is a type of reflex action controlled by the brain (a person cannot yawn on command). Yawning is normal, and usually due to drowsiness or tiredness. However, excessive yawning that happens much more often than normal may be caused by vagus nerve signals, due ...Read more
Sometimes i can't breathe deeply its like there is not enough oxigen want to yawn but can't doctors said no problem with heart lungs brain. Just nervous?
Anxiety, asthma: Sometimes asthma can present with chest tightness without coughing, wheezing or sob. You can go for hrs., feeling like you can't get a good breath. Anxiety can cause this, but usually it doesn't last more than several minutes to 1/2 hr.If this feeling lingers, ask your doctor if this could be asthma. ...Read more
Is it true tht U yawn nt bc your bored tired or stress but bc your nt getting enough oxygen bc I feel that way when I'm short of breath ?
Several theories: Yawning (oscitation) most often occurs in adults immediately before and after sleep, during tedious activities and as a result of its contagious quality. Theories involve yawning to get more oxygen to remove a build up of Carbon Dioxide, Boredom, an evolution theory (because our ancestors did it), and a "brain cooling" theory. ...Read more
Does yawning mean someone may be low on oxygen? I.E. They try to get more oxygen with a deep breath perhaps?
Yawning: Scientists speculate that the onset of a yawn is triggered either by fatigue, or by sheer boredom as, at those times, breathing is shallow, and little oxygen is carried to the lungs by the oxygen-toting cardiovascular system. When one yawns, his or her alertness is heightened, as the sudden intake of oxygen increases the heart rate, rids the lungs and the bloodstream of the carbon dioxide buildup, . ...Read more
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