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. Problems with attention can include making careless mistakes, failing to complete tasks, problems staying organized and keeping track of things, becoming easily distracted, etc. Problems with hyperactivity includes excessive fidgeting and squirming, running or climbing when it is not appropriated, excessive talking, and being constantly on the go. Impulsivity includes impatiences, difficulty awaiting one's turn, blurting out answers, and frequent interrupting. ADHD affects children and teens and can continue into adulthood and is the most commonly diagnosed mental disorder of children.