The cognitive function of the elderly in the community is decreased with age,at the same time social independence and ability to live independently decreased. With the aging of the society,we should pay much attention to the life style,diet habit,safety awareness and mental health of the elderly in the community. So to improve the quality of life and living standards of the elderly in the community is very important .%社区老人的认知功能随着年龄的增长而减退,社会独立生活能力以及自理能力降低。随着社会老龄化进程,重视社区老人的生活方式、饮食习惯、安全意识、心理健康问题等,提高社区老人的生活质量以及生活水平至关重要。
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