Electronic Cigarettes and Vaping: Factsheet Positive Choices Health impacts of electronic cigarettes ANU National Centre for Epidemiology and Population Health Are There Any Health Dangers With Vaping? Health Risks of Secondhand Smoke and Aerosols Factsheet US EPA 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