An estimated one-third of children with attention deficit hyperactivity disorder (ADHD) progress satisfactorily into their adult years, while another one-third continue to experience some problems, and the final one-third continue to experience and often develop significant problems. Many of these negative outcomes are linked to continued, severe, and persistent ADHD symptoms. Studies are demonstrating that adults with ADHD report similar symptoms as described in children with ADHD, but the daily impact of these symptoms is clearly different. Treatment with appropriate medication can significantly improve the outcome for ADHD. For example, effectively managing symptoms with medication can be a key factor in the prevention of another psychiatric disorder or of academic failure. Other significant statistics about adult outcomes of ADHD include that only 11% of adults with this disorder are accurately diagnosed or receive treatment, nearly 50% of adults with ADHD also suffer from an anxiety disorder, about 40% have a different type of co-occurring mood disorder, and about 15% also develop a substance-abuse disorder. Emerging evidence suggests that the combination of medication, cognitive therapy, and life coaching appears to significantly improve the prognosis of adults with ADHD.