10 Little-known Facts About E-cigarettes

They Cause Lung Damage
Lung health is still an issue with e-cigarettes. ©Medioimages/Photodisc/Thinkstock

Cigarette smokers are known to be at higher risk for developing cancers, the biggest risk being lung cancer; tobacco users are 15 to 30 times more likely to be diagnosed with or die as a result of lung cancer than nonsmokers, and tobacco use is responsible for as many as 90 percent of all lung cancer cases [source: CDC]. Despite the marketing claims that e-cigarettes are safer than smoking tobacco, researchers are finding e-cig users experience diminished lung function, airway resistance and cellular changes, regardless of whether or not they currently (or ever) smoke cigarettes. And in the lab, cells exposed to e-cigarette vapor show unhealthy changes similar to cells exposed to tobacco smoke [source: Park et al]. Users who vape nicotine-free e-cigs can't escape the effects, either; they also experience airway resistance and other signs of inflammation as side effects of e-cigarette use.

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