The citation provided to back up this assertion is a by Vardavas et al. (Vardavas, C.I.; Anagnostopoulos, N.; Kougias, M.; Evangelopoulou, V.; Connolly, G.N.; Behrakis, P.K., "Short-term pulmonary effects of using an electronic cigarette: impact on respiratory flow resistance, impedance, and exhaled nitric oxide," Chest 141(6): 1400-1406, June 2012.).

As is so often the case, the answer is money.

It is not the case that the authors are simply unaware of the inability of their study to conclude that the e-cigarette use is leading to regular cigarette smoking. They readily acknowledge this in the study. Nevertheless, both of the authors still make conclusive statements to the public, misleading us to believe that the study demonstrates that e-cigarettes are a gateway to regular cigarette use.

It is easy to see how this fatal flaw in the research destroys the validity of the authors' conclusion.

After I switched to electronic cigarettes, I wanted my wife and friends to try them. I found all of them interested but skeptical. Most of them had tried the cheap but did not find the satisfaction they were looking for.

The truth is that the authors of this study did not intend to examine the effectiveness of e-cigarettes for smoking cessation. They have in fact explicitly stated that their results cannot and should not be used to draw conclusions about the effectiveness of e-cigarettes.

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