4. "No significant increase was observed for the toxic and potentially carcinogenic elements cadmium, arsenic and thallium."

Furthermore, later in the paper they reinforce this point more specifically, writing: "the cross-sectional nature of our study does not allow us to identify whether most youths are initiating smoking with conventional cigarettes and then moving on to (usually dual use of) e-cigarettes or vice versa...".

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.

I then explain that the gateway hypothesis is actually unsupported by any scientific evidence and that there is some evidence which is inconsistent with the hypothesis.

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