E cigarettes: Viable to Quit Smoking or Controversial Alternative? Vaping vs. Smoking: Which One Will Kill You Faster? Dr. Zembroski 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 Landmark E Cigarette Report Explodes Myth that Vaping Is as Toxic as Smoking