The Truth About What Vaping Is Doing to Your Body American Lung Association The Mysterious Vaping Illness That's 'Becoming an Epidemic' The New York Times Nic sick? Learn About Nicotine Poisoning & How to Treat it Jones Most e cigarettes (vapes) contain nicotinethe addictive drug in regular cigarettes, cigars, and other tobacco products. Nicotine can harm the adolescent brain which continues developing until about age 25. Using nicotine in adolescence