飞机翱翔在高空，由于机舱内的气压低、缺氧、噪音和加速等因素，使人的生理活动受到一定的影响，易出现耳胀不适、呕吐等晕机症状。为避免这种不良反应的出现，除在乘机前1~2小时可口服防止晕机呕吐的药物外，还应在饮食上注意下列几个方面：一、控制进食量。既不可不吃又不可 Aircraft flying at high altitude, due to low cabin pressure, lack of oxygen, noise and acceleration and other factors, people’s physical activity is affected to some extent, prone to ear swelling, discomfort, vomiting and other motion sickness symptoms. In order to avoid the emergence of such adverse reactions, in addition to the opportunity to take the opportunity to prevent airsickness vomiting 1 to 2 hours before taking drugs, but also in the diet should pay attention to the following aspects: First, control the amount of food intake. Neither eat nor can not