what do adhd mean
What is ADHD?: A General Overview What is ADHD: A General Overview. Attention Deficit Hyperactivity Disorder (ADHD) is a disorder characterized by a persistent pattern of inattention and/or hyperactivity/impulsivity that occurs in academic, occupational, or social settings. One perplexing aspect of ADHD is that a child's symptoms can vary considerably at different times and in different settings. For example, it is common for parents to wonder how their child can have ADHD when that child focuses intently when watching TV or playing Nintendo.