In contrast, however, to the lack of evidence that electronic cigarettes are having any negative public health effects, there is strong evidence to suggest that these products are having a substantial positive public health impact. In particular, there is evidence that not only do these products help many smokers quit smoking, but more generally, they increase population interest in smoking cessation, enhance levels of motivation to quit smoking, and lead to increased quit attempts among current smokers.

To understand how ridiculous Dr. Glantz's extrapolation is, consider some of the other exposures that also cause reductions in exhaled nitric oxide:

In a recent in Forbes magazine, Jacob Sullum reviews some of the evidence which demonstrates that many former smokers have quit smoking successfully using electronic cigarettes as a cessation aid. Sullum writes:

It is difficult enough for youth to initiate cigarette smoking because of the harsh taste of the smoke. This is precisely why menthol cigarettes are so popular among youth. Menthol acts as an anaesthetic which makes it easier for a new smoker to tolerate the harsh taste. For smokeless tobacco products, adding flavorings appears to make these products more appealing to youth, probably for this very reason.

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