Does vaping cause cancer? Roseburg Community Cancer Center 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, Environmental Toxicants Exposure, and Lung Cancer Risk New study comes the closest yet to proving that e cigarettes aren't as dangerous as smoking Vaping harms your health Cancer Institute NSW Does Vaping Cause Lung Cancer? Myths and Facts OncoDaily