Infographic: Electronic Cigarettes, What is the bottom line? Health officials warned that vaping is not a safe alternative to smoking cigarettes, saying e cigarettes expose users to toxic chemicals and high nicotine levels that can harm the lungs and increase addiction. # Vaping: The Facts Health Improvement Commission E cigarettes are not a healthier alternative to cigarettes. They contain nicotine and many harmful ingredients that can cause cancer and heart disease. Since these products are relatively new, we don't know all Young e cigarette users less likely to quit smoking Twin Cities