Electronic cigarette Wikipedia Dangers of E Cigarette Use and Vaping Among Teens WakeMed Watch E Cigarettes Are a Public Health Disaster, Johns Hopkins Professor Warns Bloomberg 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 Johns Hopkins Bloomberg School of Public Health Baltimore MD