The study used data from the Northern Finland Birth Cohort 1986, which includes nearly 9,500 participants. When they were 16 years old, their parents assessed their ADHD and ODD symptoms using a ...

Young adolescents, especially boys, who participated in organized sports between ages 6 and 10 are less likely to defy their parents, teachers and other authority figures, a new study by researchers ...

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 ...

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 ...