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. Today we released a new report on vaping among youth and young adults in NYC, with recommendations on how to address this issue. Despite declines in cigarette smoking, new data show vaping Many young people who vape did not smoke cigarettes before they started vaping. But young people who vape are more likely to start smoking cigarettes than those who never vape. For help Teens Who Vape Are More Likely to Start Smoking SPH Smoking versus Vaping