银发潮喜忧参半美国是个进入老龄化社会的国家。全美现有65岁以上老年人3300万，其中85岁以上高龄族300万。预计2020年老年人将增至5300万，其中高龄族700万。那时50个州中将有32个州老年人口比例达到20％左右，而佛罗里达州将达到25％。老年人特别是高龄族的急剧增加，让人们 The United States is a nation that has entered an aging society. There are 33 million elderly people over the age of 65 in the United States, of whom 3 million are over 85 years old. It is expected that the number of elderly people will increase to 53 million in 2020, including 7 million senior citizens. At that time, the proportion of the elderly population in 32 states will reach 20% in 50 states, and Florida will reach 25%. The rapid increase in the elderly, especially the senior citizens, makes people