As e cigarette use grows, more research needed on long term effects of vaping American Heart Association Chronic electronic cigarette exposure in mice induces features of COPD in a nicotine dependent manner Thorax Tobacco, Cigarettes & Vaping Use Yes, this still is deadly! Mind and Body Exercises whole health wisdom blog & resources Exposure to e cigarette aerosol over two months induces accumulation of neurotoxic metals and alteration of essential metals in mouse brain ScienceDirect Sex specific alterations in pulmonary metabolic, xenobiotic and lipid signalling pathways after e cigarette aerosol exposure during adolescence in mice BMJ Open Respiratory Research