一年用两千亿美元极小成本去维持虚弱和苟延残喘状态的老龄化，最多能使他们的寿命增加1-2年。

There the small cost of 200 billion dollars a year to keep the elderly going in a frail and decrepit state that for most increases their lifespan for a year or two.

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平均寿命增加的速度必然会放慢，因为如今人们多死于难以根治的慢性疾病，如癌症，心脏病，糖尿病。

And that the rate of increase is bound to slow down because people now die mostly of chronic diseases-cancer, heart problems, diabetes-which are harder to fix.

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加深了与我们的人均期望寿命相匹配的健康期望寿命增加的一个重要组成部分的新陈代谢信号基础的进一步了解。

Increasing our understanding of the fundamentals of metabolic signalling is an important part of working towards an increase in health span to match our increasing life spans.

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