E Cigarettes (Vapes) Smoking and Tobacco Use CDC Teens Who Vape Are More Likely to Start Smoking SPH Smoking's loss is vaping's gain: Cigarette use has dropped to an all time low of 1 in 9 US adults Daily Mail Online Vaping: What Parents Need to Know Vaping isn't harmless it's a serious concern. Most vape products contain nicotine, a highly addictive substance that can impact developing brains and overall health.