Conclusions From 1989 to 1999, the diet structure of the Shanghai inhabitants in middle and old age changes greatly and becomes more reasonable.

结论从1989 ~ 1999年，上海市中老年人群的饮食结构有较大变化，饮食结构更趋于合理。

youdao

Objective: To investigate the changes of hemorheology for old and middle-young-aged persons who were in different age phases.

目的：回顾探讨老年人的监测血液流变学指标变化与增龄的关系。

youdao

One of the most serious changes of old age occurs in the arteries, the blood vessels that lead from the heart.

老年化引起的最严重的变化之一发生在动脉，即从心脏引出的血管。

youdao

It should be immediately apparent that implementing this policy will require fundamental changes in welfare and social security programs, and in all three of the big old age programs, both on the spending side and the revenue side.

FORBES: Work Begins on Reforming the National Pension (2)

Many diseases of old age, such as Alzheimer's, are now thought to be linked to changes in mitochondrial genes.

ECONOMIST: Centenarians