
Electronic cigarettes were first introduced into the US market in 2007 as a device to help smokers cut back on their habit. Despite growing dramatically in popularity, opinions remain divided as to their long-term impact on health. Are e-cigarettes safe or should people be worried about using them?
Many of the concerns arise from an apparent lack of evidence for the effects of e-cigaretteuse. As e-cigarette use is moving toward ubiquity, the gaps in knowledge about their effects are becoming more concerning for health experts.



