Vaping and health E cigarettes contain hazardous substances, addictive and harmful Vaping Versus Smoking: Are Electronic Cigarettes the Savior? Arteriosclerosis, Thrombosis, and Vascular Biology Instead of lighting up a cigarette, many people are now using electronic cigarettes as a healthier alternative to the bad habit. But what are the risks of using these relatively new devices? E cigarettes might harm lung tissue much like regular cigarettes do whether they contain nicotine or not a new study says. Does vaping (using e cigarettes) make a difference to our health and are there harms with second hand vaping? iHealth Facts