Attention Deficit Hyperactivity Disorder is a brain disorder mostly affecting children and teens. Hyperactivity or impulsivity interferes with the functioning of the brain or development of it. People with symptoms of ADHD may often fidget in their seats, be unable to engage themselves in quiet activities, talk a lot and lack concentration. A number of factors can contribute to ADHD including genes, exposure to environmental toxins during pregnancy and brain injuries. People with ADHD also have learning difficulties, suffer from anxiety disorder and substance abuse.
HOW IS HYPERACTIVITY DISORDER DIAGNOSED?
ADHD usually persists throughout a person's lifetime, occurring in both men and women