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疾病与健康是矛盾的两个方面,即人体与内外环境之间的关系是正常还是遭受了破坏。这是古往今来许多学者孜孜不倦地探索和研究的课题之一。找到了发病的根源,对防治疾病,保证人类健康具有非常重要的意义。西方传统的病因学理论认为,疾病的原因主要分为3大类:即生物因素(如细菌、病毒、立克次体、螺旋体、原虫、寄生虫和生物毒素等)、物理因素(如温度、各种光线、放射能、电流与电磁能、大气变化和机械外伤等)、化学因素(各种化学毒物和药剂等)对机体的作用,进而产生反应(疾病)。这就是所谓“生物医学模
Disease and health are two contradictory aspects of the relationship between the human body and the internal and external environment is normal or damaged. This is one of the topics that many scholars have tirelessly explored and studied since ancient times. Found the source of the disease, the prevention and treatment of diseases, to ensure human health has a very important significance. Western traditional etiology theory that the disease is mainly divided into three categories: the biological factors (such as bacteria, viruses, rickettsia, spirochetes, protozoa, parasites and biological toxins, etc.), physical factors (such as temperature, Various kinds of light, radioactivity, electric current and electromagnetic energy, atmospheric changes and mechanical trauma, etc.), chemical factors (various chemical poisons and medicaments, etc.) on the body, and then the reaction (disease). This is the so-called "biomedical model