About the Bloomberg Overdose Prevention Initiative Opioid Principles 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 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 E Cigarette Devices Vaping harms more than just your lungs Johns Hopkins Public Health The Johns Hopkins Institute for Global Tobacco Control's VAPER Study collected data on the most commonly used devices and liquids by U.S. Instagram