Johns Hopkins Bloomberg School of Public Health turns 100 Baltimore Sun 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 Inside the Vaper's Den: E Cigarette Salvation and New Dangers We break down the key differences between traditional cigarettes and e cigarettescovering: 1 Their compositions and ingredients. 2 The health risks associated with both. 3 Nicotine levels and addiction potential. 4 The impact Knock Out Nicotine: Dangers of Vaping Warfighter Wellness