Vaping Versus Smoking: Are Electronic Cigarettes the Savior? Arteriosclerosis, Thrombosis, and Vascular Biology Health Effects Vaping Information, Solutions & Interventions Toolkit Stanford Medicine E cigarettes are not a healthier alternative to cigarettes. They contain nicotine and many harmful ingredients that can cause cancer and heart disease. Since these products are relatively new, we don't know all Analysis suggests e cigarette use may be linked to lower rates of smoking