Why Vaping is So BAD For You (Compilation) New study comes the closest yet to proving that e cigarettes aren't as dangerous as smoking What Does Vaping Do to Your Lungs? Johns Hopkins Medicine Talking to Your Teen Who Vapes University of Rochester Medicine Is the Nicotine in E Cigarettes Harmful for Your Health? Scientific American ? () Although often promoted as safer than traditional cigarettes, e cigarettes still harm the body in many ways. 1. Health Risks Most vapes contain nicotine,