Vaping is a cancer risk although less so than smoking, researchers say COPD and Vaping: Understanding the Risks and Long Term Effects Disposable E Cigarettes More Toxic Than Traditional Cigarettes UC Davis Be A Vape Free Teen Cecil County Health Department Lung cancer risks persist with e cigarette use after quitting tobacco smoking 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