Nothing good comes from smoking , and vaping isn't a safe alternative. E cigarettes often contain nicotine and other harmful substances, and studies show that young people who vape are more likely to What Does Vaping Do to Your Lungs? Johns Hopkins Medicine Why Are E Cigarettes Safer Than Cigarettes Vape Blog E cigarettes can result in 'Popcorn Lung' E cigarettes may emit harmful substances, raising safety concerns E Cigarettes, Vaping, and Other Electronic Nicotine Products: Harm Reduction Pathways or New Avenues for Addiction? Psychiatric Times