Can Vaping Cause Lung Cancer? Here's What We Know. Smoke from e cigarettes 'damages DNA and can increase cancer risk' The Irish Times E cigarettes cause 'significantly less damage to our DNA than cigarettes' Electronic Cigarettes Induce Mitochondrial DNA Damage and Trigger TLR9 (Toll Like Receptor 9) Mediated Atherosclerosis Arteriosclerosis, Thrombosis, and Vascular Biology Vaping while pregnant isn't harmlessstudy uncovers risks to newborn lung health