Steve and Michelle were desperate. Their 6-year-old son, Sam, was diagnosed with ADHD soon after entering first grade. Sam’s behavior seemed outright defiant: He ignored adults when his name was called and was in constant motion. Sam let out bloodcurdling screams when forced to stop playing a game on the iPad...But despite the relentless advertising for meds, and the occasional coercion by school personnel, your young ADHD child may not need Ritalin. At least not yet.