One of the greatest fears shared by moms and dads around the world is their child becoming addicted to drugs. While the motivations for using and abusing alcohol and drugs have largely stayed the same, the actual substances continue to evolve, and their availability keeps increasing. Richard Capriola is the author of The Addicted Child: A Parents Guide to Adolescent Substance Abuse. He joins me to talk about the brain changes that happen with drug use, the most prevalent substances used by teens today, what to do if you find your teen using, and where to go for help if your child is addicted.