Attention-Deficit Hyperactivity Disorder simply known as ADHD is the most commonly diagnosed behavioral disorder among children in the world. The exact cause of this condition is still unknown, as most medical experts tend to believe that a number of factors like genetics, environment, neurological functions are involved. Strongly affecting the individual's performance and productivity levels, ADHD is one of the economically most expensive conditions, costing the US health care system tens of billions of dollars. While diagnosis and treatment related research still continues, medication and behavior therapy is usually applied to manage this disorder. To find out more about ADHD, its origins, types and methods of treatment read this book. It lets you have a closer look at the disorder whose prevalence has been increasing steadily throughout the past years.