High reaction generally refers to the plateau reaction, mostly due to the long time living in the plains to the altitude of more than 3,000 meters of thin air, less oxygen plateau area, the human body can not be adapted to and caused by the moment.
Atmospheric pressure and partial pressure of oxygen in the plateau area is reduced, the human body into the plateau area after the occurrence of hypoxia. Each person’s ability to adapt to the plateau hypoxia is a certain limit, low-pressure hypoxemia is the main cause of acute highland disease. The speed, severity and incidence of plateau disease are related to the altitude, speed of ascent, duration of stay at the plateau and individual susceptibility.
When plateau reaction occurs, rest should be paid attention to, timely oxygen therapy can effectively relieve the symptoms, and if necessary, go to the hospital in time.