5 Vaping Facts You Need to Know Johns Hopkins Medicine VapingModule4 Young people who vape are 3 times more likely to take up smoking cigarettes. Vaping can lead to lung damage and can be harmful for young brains, which are still developing until 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. We've developed Vaping now more common than smoking among young peopleand the risks go beyond lung and brain damage