This quick presentation was created by teens and explains why preventing substance use for youth is so important.  Prevention efforts focus on delaying the use of substances that interrupt the brain’s rapid development during adolescence, teen, and young adult years.  The younger a person is when they first use a substance like alcohol, tobacco, or marijuana, the more likely they will develop a substance use disorder during their lives.  Learn what the Anne Arundel County Prevention Coalitions are doing to prevent substance use among youth by browsing this website.