Single cigarette takes 20 minutes off life expectancy, study finds Smoking The Guardian While vaping is not risk free, it is less harmful than tobacco Our World in Data Vaping May Be More Dangerous Than Cigarette Smoking, Studies Show University Hospitals Vaping isn't harmless. While e cigarettes don't contain tobacco, nicotine is highly addictive and can harm brain development. E cigarettes can cause EVALIa serious lung injury linked to vaping. Symptoms like cough, chest