New research suggests there may be a link between frequent smartphone use and symptoms of attention-deficit/hyperactivity disorder (ADHD) in teens. While the study is preliminary and more research is needed to establish a true connection, it's likely to add to parents's concerns that too much time on digital devices can take a toll on kids' well-being.

The big health news story on Wednesday — covered by the Los Angeles Times, CNN, NBC News, Newsweek, the Wall Street Journal, NPR, HealthDay and Reuters Health, among others — was a study looking at the relationship between “digital media use” (basically, going online) and ADHD symptoms in a group of Southern California teens.

In a first of its kind randomized trial, researchers from the [University of California, Irvine] School of Medicine found therapy dogs to be effective in reducing the symptoms of attention deficit/hyperactivity disorder (ADHD) in children. The study's main outcomes were recently published by the American Psychological Association in the Society of Counseling Psychology's Human-Animal Interaction Bulletin (HAIB).

Athletes with attention deficit hyperactivity disorder (ADHD) may have greater risks of depression and anxiety after concussion, a study of college players suggests.

Kids with ADHD often struggle with friendships during the school year. They may have a hard time picking up on social cues, initiating and maintaining conversations, being empathetic toward their peers and staying calm when they feel frustrated or offended...As a parent, there are things you can do to help your child make a fresh start.

DEAR ABBY: I am a 20-year-old college student. After attending a local community college for two years, I will be starting classes at a four-year school. I make excellent grades, but I struggle with organization. My mother has ADD, and I am certain that I also have it because I display all the symptoms. However, I have never been diagnosed.