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晕劝症出现的原因与直线加减速、旋转加减速、角加速度及经向加速度作用的距离和强度息息相关。在列车上、轮船上,受到强烈的颠簸折腾时,上述的各式各样的加速度都将一起作用在人体上。因此,初次坐火车外出或乘船旅行时,其中90％会出现晕动症。有时体力不佳,疲劳过度或身患疾病,在这种情形下乘坐火车、飞机或汽车、车、船服务人员也会引起晕动症。晕动症可引起食量过大、爱喝酒。或疲惫不堪等症状。它经常加重孕妇,有肠胃病或胆囊疾病以及颅脑受过外伤的人也易罹患。只要给这些人一丁点儿刺激,他们随时就会感到头晕眼花.全身不适。更有甚者,即便只看到微波涟漪的水面或当翻阅汹涌澎湃的大海画面时,都会诱发症状。晕动症的表现形式有两种:隐性和表现性。隐性症状表现为疲乏无力,头重脚轻,恶心发烧,口干舌躁,浑身酸
The cause of halo discomfort is closely related to the distance and intensity of linear acceleration and deceleration, rotational acceleration and deceleration, angular acceleration and meridional acceleration. In the train, the ship, subject to a strong turbulence, the above-mentioned various types of acceleration will work together on the human body. Therefore, the first time you go out by train or travel by boat, 90% of them will get motion sickness. Sometimes poor health, fatigue or illness, in which case by train, aircraft or car, car, boat service staff can cause motion sickness. Motion sickness can cause excessive appetite, love to drink. Or tired and other symptoms. It is often exacerbated by pregnant women, who suffer from gastrointestinal or gallbladder diseases and those who have suffered brain trauma. As long as these people a little bit of stimulation, they feel dizzy at any time. What is more, even seeing only the water ripples on the surface or when looking through the surging sea scenes can cause symptoms. Motion sickness has two manifestations: recessive and expressive. Hidden symptoms of weakness, top-heavy, nausea, dry mouth, impatient, whole body acid