5 Vaping Facts You Need to Know Johns Hopkins Medicine Is vaping more harmful than smoking cigarettes? More people incorrectly think so: Newsroom UT Southwestern, Dallas, Texas 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. 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 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