Opinion: Vaping is a public health threat that must be confronted E cigarettes associated with greatest chance of smoking cessation, suggests Cochrane review The Pharmaceutical Journal About 1 in 10 high school students say they've used e cigarettes in the past month., Tobacco and e cigarette smoke makes breathing harder, damages lungs, and increases the risk of asthma., Learn more How Asthma Is Treated Blue inhalers could be making your asthma worse, here's why The University of Sydney