Health effects of electronic cigarettes Wikipedia Vaping has become common, but it's important to know what you're inhaling. Many e cigarettes contain nicotine, heavy metals like nickel and lead, and chemicals that can harm your lungs and overall health. 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. Harmful Effects of Vaping Chart Health Edco The more you know, the safer the choices you can make. E cigarettes and vape pens are not harmless. Many contain nicotine and other chemicals that can impact brain development, lung health,