世界心脏日的主题“你的心脏有多年轻”，致力于通过控制三大危险因素饮食、身体活动和烟草使用来预防心血管疾病。

The theme of World Heart Day, "How Young is Your Heart" addresses prevention of cardiovascular diseases by controlling three major risk factors: diet, physical activity and tobacco use.

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改变生活方式-如控制体重, 健康饮食, 体育锻炼可以控制以上三大因素, 但是很多人还是需要药物治疗。

Lifestyle changes—such as weight loss, a healthy diet, and physical activity—can affect all three risk factors, but many people will also need medications.

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默里指出土豆，肥胖症，高血压是美国人平均寿命滞后的三大主要因素。

Murray points to tobacco, obesity and high blood pressure as the three main drivers of life expectancy lags.

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The big three are three variables that the effects are so powerful that they almost don't need to be discussed in much detail.

是指三大因素,力量很强悍,我们几乎不用说得太细。

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So the big three People who are similar to you, people who are already familiar to you, people who are nearby in space.

三大可变因素,相似性，熟悉度，空间接近性。

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And I've divided these into two groups, the big three and the more interesting four.

我将其分为两组，三大因素和四个有趣因素。

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