Dozens hospitalized with lung problems after vaping Peripheral artery disease (PAD) is the narrowing or blockage of blood vessels that run from the heart to other parts of the body. Smoking can cause PAD. Quit smoking to protect your Nicotine free e cigarettes can damage blood vessels Nicotine Grows New Blood Vessels Science AAAS Electronic cigarettes and cardiovascular disease: epidemiological and biological links Pflgers Archiv European Journal of Physiology Springer Nature Link New studies show damaging effects of vaping and smoking on blood vessels