Vaping is not harmless. A new study from Johns Hopkins Medicine reveals that e cigarettes significantly increase the risk of COPD and high blood pressure. Our own Dr. Todd Hoopman shares firsthand accounts Vapour from e cigarettes can kill cells that protect lungs and damage immune system, study concludes The Independent The Independent Can vaping damage your lungs? What we do (and don't) know Harvard Health Keep Your Air Clear: How Tobacco Can Harm Your Lungs FDA