Attention deficit hyperactivity disorder (ADHD) is a mental health condition that can cause unusual levels of hyperactivity and impulsive behaviors. People with ADHD may also have trouble focusing their attention on a single task or sitting still for long periods of time. Many people experience inattention and changes in energy levels. For a person with ADHD, this happens more often and to a greater extent compared with people who don’t have the condition. It can have a significant effect on their studies, work, and home life. A person who is experiencing hyperactivity and impulsivity may: - find it difficult to sit still or remain seated, for example, in class - have trouble playing or carrying out tasks quietly - talk excessively - find it hard to wait their turn - interrupt others when they’re speaking, playing, or carrying out a task Findings indicate that people with ADHD have less gray matter volume. Gray matter includes the brain areas that help with: - Speech - Self-Control - Decision Making - Muscle Control