Teens Who Vape Are More Likely to Start Smoking SPH 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 Vaping vs Smoking vs IQOS: Which is Least Harmful? YouTube Youth vaping is rising and it's harming more than just lungs. 77% of young adults who vape never smoked cigarettes It impacts brain development, learning, and mental health