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现代生物学已着手解决许多与人类密切相关的问题,其中最重要的问题之一就是延年益寿。是否能使人们所说的老年仍旧具有工作能力和创造力、生气勃勃、充满生活的乐趣并将这一切保持到人们寿终正寝的一天呢?使人们丧失重要的生物属性和人所具有的社会意义的老年又是从何时开始的呢? 假如根据世界保健组织的分类,男性和女性的老年都是从75岁开始的。那么男性从61～75岁,女性从55～75岁,算是渐近老境的人。
Modern biology has begun to solve many problems that are closely related to human beings. One of the most important issues is longevity. Will it be possible to make the old people still have the ability and creativity to work, to live full of life and to keep it all till the end of their lives? To deprive people of important biological attributes and the social significance they have When does the elderly start again? If, according to the World Health Organization’s classification, the male and female seniors are from the age of 75. Then men from 61 to 75 years old, women from 55 to 75 years old, be as old as people.