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 Vaping Possible Negative Effects on Lungs: State of the Art From Lung Capacity Alteration to Cancer Cureus L'Institut National du Cancer : la e cig, une solution pour arrter de fumer E cigarette users show cancer linked genetic changes TRDRP Use of e cigarettes after quitting smoking increases lung cancer risk Cancerworld Magazine Breast Cancer & E Cigarettes: Is Vaping a Safer Alternative to Smoking? Maurer Foundation