Full article: Disposable electronic cigarettes chemical composition and health effects of their use. A systematic review Smoking affects more than one organ. It can silently increase the risk of multiple cancers and long term health complications, often before symptoms even begin to appear. Tobacco use is directly linked to Comparing the cancer potencies of emissions from vapourised nicotine products including e cigarettes with those of tobacco smoke Tobacco Control While vaping is not risk free, it is less harmful than tobacco Our World in Data E Cigarette Users Have a Cancer and Heart Disease Risk, Research Says Mental Health oladoc.com