如果是乘飞机长途旅行,要预防经济舱综合征。所谓“经济舱综合征”又叫“下肢深静脉血栓”或“旅行血栓症”,这是由于乘客在飞机上坐姿长时间得不到改变,导致腿部的血液循环减慢,加上机舱内湿度和气压都较地面低,乘客体内的水分容易丢失,致使血液黏稠度增加,最终形成血栓,有的 If it is a long journey by plane, to prevent economy class syndrome. The so-called “economy class syndrome” is also called “deep venous thrombosis of the lower extremities” or “travel thrombosis” because passengers can not change their sitting posture on the aircraft for a long time, resulting in a slowed blood circulation in the legs, Humidity and air pressure are lower than the ground, the passenger’s body of water easily lost, resulting in increased blood viscosity, the final formation of thrombus, and some