Teens Are 'Juuling' At School. Here's What That Means What You Need to Know About Vaping Does Vaping Cause Lung Cancer? INTEGRIS Health Popcorn lung. Vaping lung injury. Let's stop confusing the two. Popcorn lung is the lazy name for bronchiolitis obliteransa disease of the small airways, not the alveoli. It got its name from The Mysterious Vaping Illness That's 'Becoming an Epidemic' The New York Times JUUL Is Unsafe. We Want You to Know Why.