After one year, the risk of heart disease for a non-smoker is half that of a smoker.

VOA: special.2010.03.09

Unless, of course, you're a smoker, or you're thinking of becoming a smoker, and then maybe you should worry, because this is one of the advertisements that was airing in terms of anti-smoking campaign.

除非，当然，你吸烟的话，或者你正考虑开始吸烟，那么你可能就需要担心了，因为这是反吸烟运动的,宣传内容之一。

麻省理工公开课 - 化学原理课程节选

Francis Welch is a retired dentist, former smoker and now a COPD patient.

VOA: special.2010.06.23

Menthol cigarettes produce a cool feeling in the smokers throat.

VOA: special.2010.03.09

So in other words, if you live with a smoker, you really are at very high risk of demonstrating high levels of second-hand smoke exposure."

VOA: standard.2010.06.15

A study by the U.S.Centers for Disease Control reports that medical care and the loss of worker productivity averages about $3,000 annually for each smoker.

VOA: standard.2010.02.18