世界人口正在向老年化发展,据统计已有55个国家和地区进入老年型社会。我国60岁以上的老人已超过1.5亿,占总人口的11.5％,据预测,2020年我国老年人将达到2.8亿,成为典型的老年型国家。 随着社会经济的发展,人口的老龄化越来越引起人们的关注,人口老化将会对人类社会的各个领域带来深刻的影响,特别是老年性疾病将成为社会的一大“公 The world’s population is aging. According to statistics, 55 countries and regions have entered the age-old society. China has over 150 million elderly over 60, accounting for 11.5% of the total population. It is predicted that in 2020, the number of elderly in our country will reach 280 million, making it a typical elderly country. With the development of society and economy, population aging is attracting more and more attention. The aging of population will have a profound impact on various fields of human society. In particular, senile diseases will become the major public