Tweens who spend more time on screens have a higher likelihood of developing disruptive behavior disorders, with social media having an especially strong influence, a new UC San Francisco-led study ...

Oppositional defiant disorder (ODD) is a disruptive behavior disorder that emerges during childhood or adolescence and is characterized by persistent angry or irritable mood, unruly and argumentative ...

It had been a hard year. I held my 13-year-old body in a chair across from my then-therapist. We were talking about what was wrong with me; at least, that's how I thought of it. In the year that had ...