More cancer patients are vaping UPI.com We know vaping can cause serious lung problems. A new study says it might also cause cancer 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 Pilot Study Shows Even Short Term 'Vaping' Causes Inflammation in Non Smokers E Cigarette effects on oral health: A molecular perspective ScienceDirect E Cigarettes and Vaping OHSU