What I Know: Teens once they try drugs cant never stop, some stop and others abuse of this substances. Teens are the major target on consuming drugs any kind of of drugs even the cheapest ones, they get influence by primary by their friends. What I'm learning: That this problem is cause by the brain, that researchers found that the brain circuity responsible for ADHD. ADHD is a deficit hyperactivity disorder, is of growth that occurs more frequently in boys. so basically is saying that teens who have ADHD are more willing to have depression or anxiety which has a connection to drugs.