Science

TO YAWN IS HEALTHY

Yawn is not only a boredom or drowsiness symptom, but also a difficult operation on regulation of temperature of a brain, the American scientists confirm. According to the professor of psychology of University of the State of New York Andrew Gallup, a brain of the person reminds a computer: "overheating", it starts to work worse and causes a yawn, which provides inflow of blood and colder air. Improvement of the functioning of a brain becomes result of it. There are various opinions about the process of yawn. The  scientists have done many researches upon this process. As a result of many researches, the scientisats  denied the hypothesis, that yawn causes fall of the maintenance of oxygen in blood. They artificially lowered or raised it at examinees, but these manipulations did not generate active yawn.