Re: Hate to be pragmatic but
Depends on what you mean by harm. Health professionals know a lot about the long term effects of tobacco smoking / consumption as the result of a lot of data gathered over many years. Vaping is a relatively new thing - there's at most 10 years of data, no life-time studies, there's a hundred and one ways to construct a vaping unit as well as thousands of different substances that could be used. I think that comparison of a set of a few short-term studies against a lot of life-long studies isn't a fair comparison from which one can draw a definitive conclusion; many people seem to be heralding this research as just that.
Biting the hand that feeds IT
