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 Health Risks of E Cigarettes and Vaping American Lung Association Some E Cigarette Flavors May Be More Harmful Than Others The Atlantic Health Issues What's the Harm? Texas DSHS Vaping vs. smoking: what are the risks? Pacific Life Re