发达国家已出现显著的死亡率改善。经济增长带来更好的医疗卫生条件并促进人们更健康地生活。心脏病死亡率已有所下降，而癌症管理变得更为精细复杂。但是生存至高龄可能给医疗卫生带来意料之外的影响。

Developed countries have seen remarkable mortality improvements. Economic growth has delivered better healthcare and promoted healthier living. Deaths from heart disease have fallen and cancer management has become more sophisticated. But survival into old age which may have unexpected consequences for healthcare.