In one study, light smokers were found to be more than twice as likely to get cataracts as non-smokers.

一项研究表明，轻度烟民患白内障的比例是不吸烟者的两倍以上。

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Non-smokers were faster, but under the stimulation of nicotine, active smokers were faster than deprived smokers.

不吸烟者速度更快，但在尼古丁的刺激下，主动吸烟者比强制不吸烟者快。

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It also has a good influence on non-smokers.

它对不吸烟的人也有很好的影响。

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A recent study found that people who smoke are nearly two times as likely as non-smokers to develop Alzheimers disease.

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

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They also can harm non-smokers.

VOA: special.2010.03.09

"As a society we recognise that non-smokers need to be protected from carcinogens when at work but we are not doing enough to protect the most vulnerable non-smokers of all - children, " he said.

BBC: NEWS | Health | Cancer alert for smoking parents

They found that while 95% of non-smokers and 85% of smokers agreed that direct inhalation of second-hand smoke was harmful to children, just 65% of non-smokers, and 43% of smokers believed the same for "third-hand" smoke.

BBC: Warning over 'third-hand smoke'

Smokers and non-smokers alike will make up their own minds in the months ahead.

BBC: New York's outdoor smoking ban: Will the world follow?