疾病是健康的最大危害,但许多疾病是可以预防的。人之所以会生病,自身体质弱,抵抗力差,是内因;病毒等病原体侵入体内,是外因。因此,增强体质,提升自身免疫力,这是预防疾病的根本;严防病毒等病原体通过口、手、鼻这三道“关口”侵入体内,这是预防疾病的重要措施。以下谈谈预防疾病如何把好“三关”问题。 Disease is the greatest health hazard, but many diseases are preventable. The reason why people will be sick, their weak constitution, poor immunity, is the internal cause; viruses and other pathogens invade the body, is the external cause. Therefore, to enhance physical fitness and enhance their own immunity, which is the fundamental prevention of disease; prevent pathogens such as viruses through the mouth, hands and nose three “gateway” invade the body, which is an important measure to prevent disease. The following talk about how to prevent disease well “three off” issue.