 Meet Jamie, Monty, and Sarah. They are best friends. But that is not all they have in common. The three friends also have ADHD or attention deficit hyperactivity disorder. This is a chronic condition that affects millions of children and often continues into adulthood. Symptoms can differ from person to person. For example, Monty often fidgets. He has difficulty staying seated in the classroom. Monty also has trouble playing or doing an activity quietly. His ADHD shows a pattern of hyperactivity and impulsiveness. Sarah, on the other hand, easily loses items and has trouble organizing tasks and activities. She also has difficulty following through on instructions. Her ADHD is characterized by a pattern of inattention. Jamie has a habit of wriggling his body. He is constantly moving. He struggles to concentrate and makes careless mistakes in his schoolwork. Moreover, Jamie appears not to listen, even when directly spoken to. At the same time he talks too much, interrupts and blurts out answers. His ADHD shows hyperactivity and impulsiveness, as well as inattention. The three friends are examples of the three types of ADHD, inattention, hyperactive impulsive behavior, and a combination of these patterns. ADHD behaviors can also be different in boys and girls. For example, boys may be more hyperactive and girls may tend to be quietly inattentive. Symptoms sometimes lessen with age. However, some people never completely outgrow their ADHD symptoms. In adults with ADHD, hyperactivity may have decreased, but struggles with impulsiveness, restlessness, and difficulty to pay attention may continue. So, adults who struggle with restlessness, impulsiveness, disorganization, and problems prioritizing tasks may suffer from adult ADHD. Problems focusing on a task at hand, poor time management skills, trouble coping with stress, and frequent mood swings may also be due to adult ADHD. Fortunately, there is treatment available for children as well as for adults with ADHD. This includes medication, psychotherapy and behavioral interventions. If any of the symptoms mentioned in this video disrupt your life, consider being tested for ADHD. A medical evaluation and treatment can lessen the effects of ADHD.