健康长寿是人类的理想和追求。我国人均寿命已由解放前的35岁提高到近70岁。许多城市乡村都有百岁以上的老寿星。他们长寿的生活环境和生活经验值得研究总结。一个国家的人民的平均寿命反映了政治上安定与否,也是社会进步和科技、经济发展的水平等的综合标志。国际上常把婴儿死亡率、国民文化程度、人均预期寿命与国民生产总值在一起使用,因为这样更能反映一个国家的整体面貌。 Health and longevity is the ideal and pursuit of mankind. Our average life expectancy has risen from 35 years before liberation to nearly 70 years of age. Many cities and villages have old longevity of over a hundred years old. Their living environment and life experience worthy of study concluded. The average life expectancy of a country’s people reflects the political stability or not. It is also a comprehensive symbol of social progress and the level of science and technology and economic development. Internationally, infant mortality rates, national literacy rates and life expectancy per capita are often used together with the gross national product to reflect the overall picture of a country.