New Analysis Underscores Health Risks of E Cigarettes Johns Hopkins Medicine Vaping study shows e cigarettes more harmful than thought triple j 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 Smoking and vaping are often compared, but neither is harmless. While they work differently, both can expose the lungs to addictive nicotine and harmful chemicals that impact breathing and overall health. Smoking