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当今社会,由于卫生、教育及社会福利的进步,大多数国家人们的寿命在延长,一些人口统计学家认为人的寿命可能会变得格外长,全世界已经视老年问题为社会责任。根据联合国人口基金会的新闻公报:1999年全球60岁以上的老年人已经超过了7
In today’s society, the life expectancy of people in most countries is prolonged due to improvements in health, education and social welfare. Some demographers believe that the life expectancy of people may become extremely long and the world has assumed the social responsibility as an issue of old age. According to UNFPA press communiqué: the number of elderly people over the age of 60 in 1999 has exceeded 7