So how can cigarette smokers, or people exposed to second hand smoke, lower the risk of lung cancer?

因此如何使那些吸烟者，或是细二手烟的人们降低患肺癌的危险呢？

youdao

The risks were actually higher for ex-smokers and for women exposed to second-hand smoke.

实际上对于过度吸烟者和吸二手烟的人群风险都是很高的。

youdao

Does it mean that the stress relief smokers get while smoking doesn't last once they don't have a cigarette in hand?

一旦他们不吸烟了他们真的会感到压力很大吗？

youdao

They also found that people exposed to second-hand smoke - like smokers - were more likely to be admitted to a hospital for a psychiatric illness than people without the exposure to tobacco smoke.

VOA: standard.2010.06.15

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'

Previous reports recorded a "sharp decrease" in "non-smokers exposure to second-hand smoke" following the ban in smoking in public places in 2006.

BBC: Scottish Health Survey: Obesity still problem for Scots