At the same time, aging – and the associated cost of health care for the elderly – constitutes the main fiscal challenge in maturing societies. By the middle of this century, life expectancy at age 60 will have risen by about ten years relative to the post-World War II period, when current retirement ages were fixed.
与此同时，老龄化——以及相应的老年人健康支出成本——构成了高龄社会的主要财政挑战。但在本世纪中叶，60岁年龄段的预期寿命将比二战后时期增加十年，而当前的退休年龄就是那时候制定的。