Tobacco Nicotine Rutgers Addiction Research Center (RARC) Smoking, Tobacco, E Cigarettes and Oral Health Growing Smiles Vaping has become common, but it's important to know what you're inhaling. Many e cigarettes contain nicotine, heavy metals like nickel and lead, and chemicals that can harm your lungs and overall health. Tobacco and E Cigarettes My Story Today Health effects and known pathology associated with the use of E cigarettes ScienceDirect Vaping Versus Smoking: Are Electronic Cigarettes the Savior? Arteriosclerosis, Thrombosis, and Vascular Biology