ADHD cases are up. 7 million U.S. kids have gotten a diagnosis, study finds : Shots

Attention-deficit/hyperactivity disorder (ADHD) is one of the most common neurodevelopment disorders among children. SIphotography/Getty Images hide caption toggle caption SIphotography/Getty Images About 1 in 9 children in the U.S., between the ages of 3 and 17, have been diagnosed with ADHD. That’s according to a new report from the Centers for Disease Control and Prevention…