It looks like there's more evidence of harm reduction with e-cigarettes, when compared to combustible cigarettes. Certainly instinctively one would believe e-cigs are safer than cigarettes, the presence of evidence is helpful.
"Conclusion: Former smokers with long-term e-cigarette–only or NRT-only use may obtain roughly similar levels of nicotine compared with smokers of combustible cigarettes only, but results varied. Long-term NRT-only and e-cigarette–only use, but not dual use of NRTs or e-cigarettes with combustible cigarettes, is associated with substantially reduced levels of measured carcinogens and toxins relative to smoking only combustible cigarettes."
News that has been personally selected by the Editorial team.