日历年龄———由每一个人的出生地年月日机械推算出来的年龄,满12个月为一周岁。遗传年龄———每个人的寿命长短,与父母的遗传基因有关。社会年龄———指人们处在不同的社会制度和社会环境下,形成的不同的平均寿命。如解放前我国人口的平均寿命只有35岁,而助部国有部,不现在 Calendar Age --- Calculated by the age of each person’s birth place mechanical age, 12 months of age. Genetic age --- the length of life of each person, and the parents of the genetic gene. Social age --- refers to people in different social systems and social environment, the formation of different average life expectancy. For example, before the liberation, the average life expectancy of our population was only 35 years, while that of the ministry of state ministry was not present