Vaping is NOT Harmless. Know the long term effects before it's too late! Most e cigarette liquids contain high levels of nicotine, which is highly addictive. Despite the legal age being 21, vaping devices The Dangerous Truth Behind E Cigarettes Advanced DDS Health Effects of Vaping Vaping Versus Smoking: Are Electronic Cigarettes the Savior? Arteriosclerosis, Thrombosis, and Vascular Biology How E Cigarettes Affect Your Body Health effects and known pathology associated with the use of E cigarettes ScienceDirect