Vaping: The Good, the Bad and the Popcorn Lung MPH Online E Cigarettes: Good Idea? Bad Idea? BU Today Boston University 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 Vapes might be less harmful than traditional cigarettes and might help smokers quit smoking, but they are not safe, especially for individuals younger than 25 years old. Plus, much is still unknown