Alcohol Vape: Is It Safe? The Dangers Explained 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 Vaping: What You Should Know Just Think Twice What Happens If You Hold Vape Smoke In Your Mouth Vaping and Oral Health If you vape, you inhale a lot of harmful substances. These can damage your heart and lungs.