Because the plateau meteorological conditions are characterized by low oxygen partial pressure, low gas pressure, strong ultraviolet rays, cold, dry, windy, and relatively strong ionizing radiation, etc., so after staying in the plateau for a long time, some of the following conditions may occur: 1. chronic plateau reactions, such as dizziness, insomnia, memory loss, inattention, palpitations, shortness of breath, decreased appetite, indigestion, numbness of the hands and feet or facial edema; 2, Plateau heart disease; 3, plateau erythrocytosis; 4, plateau blood pressure changes; 5, because of the high intensity of ultraviolet light in the plateau, coupled with the relatively high hemoglobin, so stay in the plateau for a long time, you can also appear a typical face, that is, the plateau red face.