WHAT’S THE BOTTOM LINE ON THE RISKS OF E-CIGARETTES FOR KIDS, TEENS, AND YOUNG ADULTS?The use of e-cigarettes is unsafe for kids, teens, and young adults.Most e-cigarettes contain nicotine. Nicotine is highly addictive and can harm adolescent brain development, which continues into the early to mid-20s.1E-cigarettes can contain other harmful substances besides nicotine.Young people who use e-cigarettes may be more likely to smoke cigarettes in the future.