防止由吸烟引起的DNA基因损坏。

Preventing the genetic damage smoking can cause.

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当人们想到吸烟引起的癌症时，首先想到的总是肺癌。

When people think of cancers caused by smoking, the first one that comes to mind is always lung cancer.

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吸烟引起的疾病是人类所知的最严重地威胁健康的疾病。

Diseases related to smoking are among the most grave health issues known to mankind.

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That little J shaped curve is explained primarily by cigarette smoking because that keeps weight down in people, it also makes people sick so that their weight gets low because of that, and it explains the high rates of the disease risk there.

这个小J形曲线主要是由吸烟引起的,因为吸烟一方面能让体重降低,另一方面也引起疾病,疾病让人们的体重下降,这也解释了这里的高患病风险

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选