Fortunately, there is a simple way to evaluate this hypothesis, at least on a preliminary basis, prior to waiting for the results of longitudinal studies. Enough youth are experimenting with electronic cigarettes, and the increase in youth e-cigarette use has been dramatic and sustained enough, that if the gateway hypothesis were correct, we would be starting to see an increase in smoking prevalence among youth due to the many new smoking initiates that were converted from e-cigarette experimentation to smoking.

This study confirms that in the UK, despite substantial experimentation with e-cigarettes by youth, this experimentation does not appear to be leading to regular e-cigarette use by a large proportion of youth, and those who are regular users are overwhelmingly youth who are already smokers or who smoked in the past.

This is an ironic reversal from the past, where it was the public health groups sending the anti-smoking messages and the tobacco industry which was undermining those anti-smoking messages.

After claiming that there is now abundant scientific evidence that electronic cigarettes are a gateway to smoking, these politicians go on to urge the FDA to ban flavorings in e-cigarettes and to ban the online sale of these products.

LAST：Big news !! new ego battery cheap price good quality 2014 O ECIGS e cig wholesale china |NEXT：Wholessales electronic cigeratte green smoking with 500 puffs