3 Charts Visual Study: The Link Between Vaping and Smoking in Kids Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London What Does Vaping Do to Your Lungs? Johns Hopkins Medicine ? () Although often promoted as safer than traditional cigarettes, e cigarettes still harm the body in many ways. 1. Health Risks Most vapes contain nicotine, E cigarettes contain hazardous substances, addictive and harmful 5 Vaping Facts You Need to Know Johns Hopkins Medicine