ADHD is short for attention-deficit hyperactivity disorder. It is characterized by ongoing patterns of inattention, impulsivity, and/or hyperactivity that impairs daily functioning. Affected individuals may have problems in one or more areas, resulting in terminology such as ADHD, primarily inattentive type, or ADHD, combined type. ADHD is a lifelong brain condition that may or may not be easily recognized depending on context. It can be managed with combinations of behavioral, environmental, and medication strategies. When managed appropriately, most individuals with ADHD can lead very successful lives. When unrecognized and/or untreated, many people with ADHD may have recurrent, longstanding trouble with academic achievement, employment, relationships, and engagement in risky behaviors.