A decade ago, the most frequent opinion among smokers was that vaping was less harmful than tobacco. But ten years on, the opposite is true: over a third say that vapes are E cigarettes: A win or loss for public health? Knowable Magazine World Tobacco Day E Cigarettes Vaping Can Be More Harmful Than Regular Cigarettes Can Cause Lung Injury Experts Say Vaping May Increase Respiratory Disease Risk by More Than 40 Percent SPH E cigarettes contain hazardous substances, addictive and harmful