New lung scans prove vaping is toxic. The science is officially in. Scans show that teens have developed "popcorn lung" as a result of vaping. It's a permanent, chronic disease that shortens E Cigarettes Toxicity and Appeal of Flavoured E Cigarettes and Flavour Ban Outcomes: A Narrative Review Toxic Metals in E cigarettes Lead to Oxidative DNA Damage StressMarq Emissions from Electronic Cigarettes: Key Parameters Affecting the Release of Harmful Chemicals Environmental Science & Technology