The 101 on e Cigarettes Infographic American Heart Association Vaping is often marketed as a safer alternative to smoking, but many vape products contain nicotine, harmful chemicals, and heavy metals that can harm developing brains and lungs. Stop Smoking E Cigarettes CardioSmart American College of Cardiology 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 Health impacts of electronic cigarettes ANU National Centre for Epidemiology and Population Health Vaping and Electronic Cigarette Toxicity Overview and Recommendations (Project VECTOR) Intrepid Lab