坐飞机长途飞行时 ,人们就会感觉到时差对身体的影响。主要表现为对一个人习惯性的消化、睡眠和休息的节奏发生相当程度的干扰。如果飞越三四个时差区以上 ,人的生理时钟就会混乱 ,而觉得难受不能适应。人的生理节奏改变后 ,最明显的困扰 ,就是意识不能集中和无法睡眠。研究证 When you fly long flights, people feel the effects of jet lag on the body. Mainly for a person’s habitual digestion, sleep and rest rhythm quite a degree of interference. If you fly more than three or four jet lag zones, people’s physical clock will be chaos, and feel uncomfortable can not adapt. After the change of human circadian rhythm, the most obvious problem is that consciousness can not concentrate and can not sleep. Research card