Why it’s so hard to talk about e-cigarette risks

A growing proportion of American adults consider vapes just as or even more dangerous than cigarettes, according to a study out today. The findings illustrate just how hard it is to accurately convey the risks of e-cigarettes, especially when public health researchers are still working out what some of those risks actually are.Part of the challenge is that the risk-benefit calculation for e-cigarettes depends on who’s using them. For adult smokers, completely switching to e-cigarettes may