Health warning issued: Vaping linked to irreversible condition known as popcorn lung Doctors are now urging users to take the risk seriously before it's too late Full story and medical GEEKBAR PULSE Makes a Grand Entrance GEEK BAR It's official. Flavored e cigarettes cause permanent lung damage. And doctors are already seeing it happen. In the United States, a teenager developed something called popcorn lung after secretly vaping for three years. Health Concerns Around 3 New Vape Products Three new vaping products have hit the market recently, public health experts are raising red flags.Research shows that vaping can contribute to a range