Tracking the conflicting claims about e-cigarette safety
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A look at the numbers shows that vaping is catching on as quickly as smoking did in the 1950s. In just two years, the percentage of smokers who have tried e-cigarettes, which vaporize a liquid solution rather than burn tobacco, jumped from 2% in 2010 to 30% in 2012.
Fueling that trend are claims that e-cigs are a healthier way for people to use nicotine and that they can help smokers kick the habit. …