80% of US Doctors Incorrectly Believe that Nicotine Causes Cancer Vaping News Vapouround Magazine Vaping may not contain tobacco, but that doesn't mean it's harmless. E cigarettes still expose your lungs to nicotine and a mix of chemicals that have been linked to lung disease, heart issues, E cigarettes accelerate lung colonization of breast cancer cells. A. Download Scientific Diagram Can vaping cause cancer? The evidence suggests it might. The Washington Post Vaping likely to cause cancer: Australian study