在对20年的癌症死亡风险研究中，阿司匹林组比对照组要低，并且效果随实验干预时间的延长而增加。

The 20-year risk of cancer death remained lower in the aspirin groups than in the control groups, and benefit increased with scheduled duration of trial treatment.

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之前的很多研究已经发现，越乐观的人得慢性病的风险越低，过早死亡的风险也越低。

Previous studies have found that more optimistic people have a lower risk of developing chronic diseases, and a lower risk of premature death.

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有研究认为，超重不会增加死亡的风险。对此，美国健康问题专家周三发出警告：超重也许不会要你的命，但却可能导致肥胖。

Being overweight may not kill you, but it could lead to obesity, U.S. health experts cautioned on Wednesday in response to research suggesting that being a bit heavy does not raise the risk of death.

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