The Impact of E Cigarettes and Asthma: What You Need to Know Vape Free Gut: Ditch the Vapor, Restore Your Digestion Vapor Hiding Dangerous Ingredients: E Cigarette Concoctions Are Far from Safe American Lung Association Why You Cough When You Vape, and How to Stop It! E Cigarette Direct 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