我们生活在变革的时代:人类赖以生存的环境变了,如环境的污染、生态的破坏;人口构成变了,如人口的老化和一胎化;病因谱、疾病谱、死因谱也变了,威胁人类健康的主要病因已经由贫穷和生物因子转变为文明富裕和社会因子;人们的生命观、疾病观和健康观也变了,即医学模式已由生物医学模式逐步转向生物、心理、社会医学模式;人们的要求也变了,过去希望治好病, We live in an era of change: the environment in which human beings live has changed, such as environmental pollution and ecological destruction; population structure has changed, such as the aging of the population and one-off childbirth; the spectrum of the causes, the spectrum of diseases, and the spectrum of causes of death have also changed. The main causes of threat to human health have changed from poverty and biological factors to civilized wealth and social factors; people’s outlook on life, disease, and health have also changed, that is, the medical model has gradually shifted from the biomedical model to biological, psychological, and social. The medical model; people’s requirements have also changed. In the past, they wanted to cure diseases.