Smoking vs Vaping Which is Worse? Smoking: 1. 7,000+ harmful chemicals 2. Causes lung cancer, COPD, heart blockages, strokes 3. Long term, progressive, and deadly Vaping: 1. Marketed as "safer" but misleading New study finds e cigarettes could release 15 times more formaldehyde than tobacco Guide pour choisir le e liquide de sa cigarette lectronique E cigarettes are likely to be much less harmful than conventional cigarettes, an analysis of current scientific research suggests. Scientists argue replacing conventional cigarettes with electronic ones could reduce smoking related deaths even though VAPING: Harmful in More Ways Than One The Mobility Forum