Do you know what's in a vape? Vaping might feel safer than smoking but whats really happening inside our lungs?, The EVALUATE study led by the @unibirmingham will be the first to track ex smokers over a whole year to uncover Health effects of electronic cigarettes Wikipedia Just How Harmful Is Vaping? More Evidence Is Emerging. The New York Times If you vape, you inhale a lot of harmful substances. These can damage your heart and lungs.