The main difference between this study and those touted by Glantz as showing that e-cigarettes are ineffective is that unlike Glantz's cited studies, this one actually examines cessation rates among smokers who reported using e-cigarettes for smoking cessation. In other words, Brown et al. included smokers who reported having used e-cigarettes with the intention to quit smoking. In the studies cited by Glantz, smoking cessation rates for all e-cigarette users were examined, even if a smoker just tried a puff of an electronic cigarette to see what all the hype is about.

Furthermore, caffeine has a lower boiling point than nicotine does. As your electronic cigarette vaporizes the E-Juice, the caffeine could easily have dissipated, especially due to the lower concentrationsin the e-liquidI was using.

And furthermore, there is no evidence that electronic cigarettes are causing nonsmoking youth to become regular users. In fact, there is no evidence that any substantial proportion of nonsmoking youth who tried these products are continuing to use them regularly (more than once per month).

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