Attention deficit hyperactivity disorder (ADHD) is a mental health condition that can cause unusual levels of hyperactivity and impulsive behaviours. People with ADHD may also have trouble focusing their attention on a single task or sitting still for long periods of time.
Children with ADHD may also struggle with low self-esteem, troubled relationships and poor performance in school. Symptoms sometimes lessen with age. However, some people never completely outgrow their ADHD symptoms. But they can learn strategies to be successful.