Analysis suggests e cigarette use may be linked to lower rates of smoking Nonnicotine vapes may be marketed as safe, but many still contain chemicals, have unknown health effects, and aren't FDAregulated. Teens are using them more ofteneven alongside nicotine vapes. No ecigarette is risk free. The Health Impacts of E Cigarettes Health effects of electronic cigarettes Wikipedia Health Effects of Vaping Smoking and Tobacco Use CDC The Dangers of Vaping How E Cigarettes Affect Student Health