早在2000多年前,人们就发现严酷的高原环境,如低气压、缺氧、严寒、太阳幅射、紫外线、电离幅射等,会给机体带还严重危害。其中主要是缺氧的影响,严重的缺氧可以致命。机体未经适应迅速进入3,000m以上的高原,或由海拔较低的高原进入更高地区,就可能不适应低氧的高原环境而发生高山适应不全症或称之为高山病(mountain sickness) As early as 2,000 years ago, people found harsh plateau environments such as depression, anoxia, cold, solar radiation, ultraviolet radiation and ionizing radiation, which would also seriously damage the body. Which is mainly the impact of hypoxia, severe hypoxia can be fatal. Without adaptation, the body rapidly enters the plateau of more than 3,000 m, or enters a higher region from a plateau with a lower altitude, may not adapt to the hypoxic plateau environment and may experience mountain sickness or mountain sickness.