To achieve the Biden Cancer Moonshot, e cigarettes must be widely approved Salon.com 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 Busting 8 Common Myths About Smoking and Cancer 16 cancers relis la cigarette Qubec sans tabac E Cigarette Hidden Danger: 11 Years of Vaping Led to Death Vaping can cause cancer, say researchers but still isn't as damaging as smoking cigarettes. More than 5.5 million Britons currently use e cigarettes, which have long been viewed as a safer alternative