Attention Deficit Hyperactivity Disorder (ADHD) is a mental health disorder that can cause above-normal levels of hyperactive 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.Both adults and children can have ADHD. It's a diagnosis recognized by the American Psychiatric Association (APA). Learn about types of ADHD and symptoms in both children and adults.Despite being the most commonly studied and diagnosed mental disorder in children and adolescents, the exact cause is unknown in the majority of cases. It affects about 5-7% of children when diagnosed via the DSM-IVcriteria and 1-2% when diagnosed via the ICD-10 criteria. As of 2015 it is estimated to affect about 51.1 million people globally. Rates are similar between countries and depend mostly on how it is diagnosed. ADHD is diagnosed approximately two times more often in boys than in girls, 2] although the disorder is often overlooked in girls because their symptoms differ from those of boys. About 30-50% of people diagnosed in childhood continue to have symptoms into adulthood and between 2-5% of adults have the condition. In adults inner restlessness rather than hyperactivity may occur. They often develop coping skills which make up for some or all of their impairments. The condition can be difficult to tell apart from other conditions, as well as to distinguish from high levels of activity that are still within the range of normative behaviors.Attention-Deficit Hyperactivity Disorder (ADHD) is a neurodevelopmental condition that affects both children and adults. Almost eleven percent of American children have ADHD. But it's not just a childhood disorder. About four percent of American adults have ADHD as well. It is thought to be genetic, with some environmental factors playing a role as well. ADHD is more prevalent in children living in lower- income households, which suggests that environment is indeed significant. Fish contains nutrients that help prevent heart disease and other serious ailments
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