A new study shows the lack of treatment for many of the nation’s teenagers. Less than half, approximately, of teens with severe disorders received any treatment at all. Attention-deficit/hyperactivity disorder (ADHD) and conduct disorders were treated most often. Only about 20% of teens with anxiety or substance use disorder were treated, with fewer black and Hispanic than white teens receiving service. The researchers emphasize that the lack of mental health professionals who deal with adolescents is a problem that will likely worsen as more currently uninsured groups become insured.