当然这些娱乐活动本质上并不坏，他们常常很有用，丰富你的生活，使你健康。

Note that these distractions aren’t actually bad in and of themselves. They’re all useful, productive, healthy activities.

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体育运动使你保持健康。

Exercise keeps you fit.

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糖将损害身体健康，并使你老的更快。

Sugar decreases your overall health and makes you age quicker.

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So, you're treating healthy people and you're trying to prevent them from getting a disease and you don't know who's going to get it.

所以,你处治的对象是健康人群,要使他们远离疾病,但你不知道谁会被感染

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Let's say, just say that you're wanting to change your own diet to improve your health.

比如说,你想改变自己的饮食习惯,使自己更健康

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And what make you healthy?

什么使你健康？

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