The number of the elderly 老人 in such a population 人口 is
increasing rapidly as compared to other groups (for
example, children 孩子 and young adults 年轻人). In
statistical 统计学 terms,
the median age 中位年龄 of this population is rising. For
some, an ageing population 老龄化 lǎo
líng huà is deemed a demographic problem
人口问题.
The shift in
median is normally attributed to the following:
o
better healthcare systems 医疗保健系统
o
more social and recreational activities (for the
elderly)
o
increased life expectancy as quality of life gets
better
o
declining mortality rates
o
family planning leading to decreasing birth rates
o
migration to regions of ageing population 老龄化 lǎo
líng huà.
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