Blown up in smoke: Young adults who vape at greater risk of COVID symptoms Harvard Health Scientists discover why vaping is 'more dangerous than smoking' in first of its kind study Vaping has overtaken cigarettes as the dominant nicotine risk for young people. The 2025 Monitoring the Future survey of 24,000+ US students confirms what schools have been seeing for years: 31% of 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 Young people who vape may be more likely to start smoking Vaping Percentages UW CTRI UWMadison