They also can harm non-smokers.

VOA: special.2010.03.09

If you run these curves only on non-smokers you get rid of that J at the end of the curve and you get pretty much a function that's to the right of the curve here.

如果仅在不吸烟人群中做统计,那么左末端就不会出现J形曲线,而是会得到一条,从左到右逐渐上升的完美的函数曲线

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Now,a new study adds to evidence that non-smokers who live or work around smokers can experience psychological harm as well.

VOA: standard.2010.06.15

As a result,some companies now require smokers to pay a larger share of their health insurance than non-smokers.

VOA: standard.2010.02.18

"And again it's relevant to the entire community." A growing number of large American companies are finding that health care costs for smokers are higher than for non-smokers.

VOA: standard.2010.02.18