The article reports the results of a cross-sectional sample of adolescents interviewed in 2011 and 2012 in the National Youth Tobacco Survey. Youths were asked to report their smoking status as well as their e-cigarette use, both any use and current use (at least once in the past month).

• The truth is that the study only measured ever use of electronic cigarettes, not current use, regular use, or addiction to nicotine. Thus, it could not determine whether the kids who had tried electronic cigarettes ever used them again. So it could not tell if these kids were addicted to nicotine. They may have simply tried an electronic cigarette and not vaped again.

In fact, the bulk of the evidence suggests that the introduction of the cigarette filter, while obviously not making cigarettes substantially safer, did result in small but measurable declines in cancer risk. These declines occurred due to a tremendous reduction in tar yield, from levels as high as 40-50 mg down to less than 20 mg. The evidence suggests that further declines - to levels below this massive initial drop - were not associated with further declines in cancer risk.

b. Menthol

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