Disposable vapes ban 'could lead to relapse in people trying to quit smoking' Vaping The Guardian If you don't vape, don't start. Most e cigarettes contain nicotine, which is highly addictive and harmful to your health, especially for teens, young adults and those who are pregnant. Learn more about Elevated Toxic Element Emissions from Popular Disposable E Cigarettes: Sources, Life Cycle, and Health Risks ACS Central Science Researchers Find Toxic Metals in E Cigarette's Johns Hopkins Bloomberg School of Public Health E cigarettes and Vaping Commercial Tobacco Use MN Dept. of Health