Well, Polosa et al. have conducted exactly such a . They examined the changes in asthma symptoms among smokers who continue to smoke versus those who switch to electronic cigarettes. These investigators reported that in contrast to real cigarettes, the fake ones result in actual harm reversal. Lung function, asthma control, and asthma symptoms were significantly improved among patients who switched from regular cigarettes to electronic cigarettes. These improvements were even observed among patients who became dual users of both real and fake cigarettes.

What Stan does not reveal in his review article is that instead of estimating cessation rates among a cohort of smokers who made quit attempts using these products, the Vickerman study analyzed cessation rates of a large number of smokers who had previously tried to quit using e-cigarettes but failed, and then called a quitline because they had failed and wanted to try again. Then, they compared the quit rate among these smokers to that among smokers without such a history of a failed quit attempt using electronic cigarettes.

In order to introduce a new electronic cigarette product to the market, the manufacturer will have to demonstrate that the product is beneficial to the public's health. This does not simply mean that one must demonstrate that the product is safer than cigarettes. The applicant also needs to show that the introduction of the product into the market will not deter smokers from quitting or encourage youth to start using the product. At the present time, there is a substantial body of opinion among tobacco control experts that electronic cigarettes do not reduce population risk. Therefore, how can we expect that a manufacturer could demonstrate, at the level of proof required, something which most tobacco control experts do not even agree with?

LAST：dry herb vaporizer cloutank m3 e cigarette cloutank m3 |NEXT：2014 mods 1:1 clone sioux mod full mechanical mod clone sioux mod