What are the specific symptoms of attention deficit hyperactivity disorder (ADHD) in children?

The specific manifestations of childhood hyperactivity disorder mainly include: 1. Excessive activity: The child shows excessive movement in various settings, such as being unable to sit still in class, frequently leaving their seat, fidgeting, and running or dashing around after class. 2. Attention deficits: Difficulty concentrating, frequently shifting from one activity to another, inability to focus on a single task for an extended period, and even during play, difficulty sustaining attention. 3. Impulsive behavior: Children often act impulsively and stubbornly, with poor self-control. They may exhibit exaggerated emotional reactions to minor issues and are prone to arguments or physical fights. 4. Learning difficulties: Due to inattention and hyperactivity, children generally perform poorly academically, despite having normal or near-normal intelligence. 5. Emotional instability: Mood swings are common, manifesting as irritability, anxiety, depression, and other emotional disturbances.