ADAH Does It Apply To Percy Take a moment to visualize and think has why do people act impulsive and hyperactive. In the LIghtning Thief by Rick Riordan Percy Jackson the main character says he has ADHD. Percy has been diagnosed with ADHD [attention deficit hyperactivity disorder]. The main traits of ADHD are inattention, hyperactivity, and impulsivity. The ADHD child has trouble keeping his mind on one thing and organising a task. He / she feels restless and fidgety. He /she may blurt out comments or act without thinking. I don’t think Percy has ADHD he doesn't really act impulsive, hyperactive or ina First and foremost , Percy doesn’t really act inattentive he only actually shows signs of it in school, he couldn’t easily understand