Have you ever had trouble concentrating, found it hard to sit still, interrupted others during a conversation or acted impulsively without thinking things through? Can you recall times when you daydreamed or had difficulty focusing on the task at hand?
Most of us can picture acting this way from time to time. But for some people, these and other exasperating behaviors are uncontrollable, persistently plaguing their day-to-day existence and interfering with their ability to form lasting friendships or succeed in school, at home and with a career.
Unlike a broken bone or cancer, attention deficit hyperactivity disorder (ADHD, also sometimes referred to as just plain attention deficit disorder or ADD) does not show physical signs that can be detected by a blood or other lab test*. The typical ADHD symptoms often overlap with those of other physical and psychological disorders.
The causes remain unknown, but ADHD can be diagnosed and effectively treated. Many resources are available to support families in managing ADHD behaviors when they occur.
Attention deficit disorder has been around a lot longer than most people realize. In fact, a condition that appears to be similar to ADHD was described by Hippocrates, who lived from 460 to 370 BC. The name Attention Deficit Disorder was first introduced in 1980 in the third edition of the Diagnostic and Statistical Manual of Mental Disorders. In 1994 the definition was altered to include three groups within ADHD: the predominantly hyperactive-impulsive type; the predominantly inattentive type; and the combined type (in the DSM-5, these are now referred to as "presentations").
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ADHD usually appears first in childhood, but can also now be diagnosed in adults (as long as some symptoms were present in the individual's childhood, but simply never diagnosed).