What Vaping Really Does to Your Lungs University of Utah Health Vaping may damage immune system and lead to lung disease, study suggests 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 raise risks of lung disease Study Punch Newspapers Vaping Related Illness and Lung Disease NEJM