E Cigarette How E Cigarettes Work, Health Risks & Teen Use Most e cigarettes contain nicotine, which is highly addictive. Putting maximum limits on the nicotine strength of e cigarettes, along with evidence based tobacco control strategies, may help reduce youth e cigarette use and increase quitting E Cigarettes and Vaping PPAC Central E Cigarettes and Their Use in the U.S. and Kansas Kansas Health Institute Think Before You Vape! Vaping isn't harmlesse cigarettes can contain nicotine, heavy metals, and harmful chemicals. Risks include addiction, lung injury, and heart issues. Protect your health and make informed choices! # Have you been thinking about trying e cigarettes? Think again! Most e cigarettes contain #nicotine and harmful emissions. Some products claiming to be nicotine free have been found to contain nicotine. Nicotine is highly addictive