The main factor that affects the human body in the plateau environment is the lack of oxygen. After the plain people enter the plateau, the body undergoes a series of compensatory adaptive changes under the regulation of nerve C body fluid to adapt to the plateau environment, and this process is called plateau habituation. This process is called plateau habituation, which is a reversible non-genetic physiological and morphological change. Most of the plain people, after entering the plateau from the plain, can get a good adaptation to the plateau environment through the compensatory adaptive reaction of the body, and can work and live normally in the plateau environment without any discomfort. However, there are some people who, after entering the plateau from the plains, suffer from poor acclimatization due to insufficient or too strong compensatory adaptive reactions, resulting in various acute and chronic plateau diseases.