Tobacco can be bad for your health even if you are not the one smoking. Breathing in the smoke can lead to many health problems. Vaping is also bad for you. E cigarettes E cigarettes: nicotine supplement or aid to quit smoking? Vaping Versus Smoking: Are Electronic Cigarettes the Savior? Arteriosclerosis, Thrombosis, and Vascular Biology The evidence is clear: Young E cigarette users suffer from respiratory symptoms American Lung Association