Smoke without fire: What's the truth on e cigarettes? New Scientist Long term effects of chronic exposure to electronic cigarette aerosol on the cardiovascular and pulmonary system in mice: A comparative study to cigarette smoke ScienceDirect Vaping isn't harmless. While e cigarettes don't contain tobacco, nicotine is highly addictive and can harm brain development. E cigarettes can cause EVALIa serious lung injury linked to vaping. Symptoms like cough, chest Health Effects of Vaping Smoking and Tobacco Use CDC Health Risks of E cigarettes E cigarettes and other types of 'vaping' devices are still fairly new, and more research is needed over a longer period of time to know what the long term health