Why Do Disposable Vapes Make You Feel Sick? Causes and Solutions 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 Another Gross Reason to Put Down the E Cigarettes American Lung Association Some advice: don't start using these. I've probably spent 1000 on them since September. Just buy a normal vape (or better yet; give up nicotine) : r ireland