How Smoking Damages Blood Vessels and How They Recover Vaping Just Once Could Immediately Change Your Blood Vessels, Even Without Nicotine : ScienceAlert Flavored e cigarettes modulate embryo development, fetal growth, and potentiate early fetal demise without nicotine Communications Medicine E cigarettes damage brain, heart, lungs and blood vessels, study finds The Irish Times Is smoking or vaping worse for you? It depends who's asking BBC Science Focus Magazine