What Is ADHD?

Attention-deficit/hyperactivity disorder (ADHD) is a condition that first appears during childhood. It can last into adulthood. ADHD can lead to a wide range of ongoing symptoms that interfere with friendships, schoolwork, and daily life.

Some people with ADHD find it hard to pay attention or remember important things, like daily chores. Others may be hyperactive and have trouble sitting still or staying calm. They may act impulsively and have difficulty with self-control. For example, they may interrupt others or act without thinking.

Anyone can have ADHD. But it’s more common in males than females. Boys and men tend to have more hyperactive and impulsive symptoms. Girls and women are more likely to have symptoms of inattention. Some people have all types of symptoms.

The causes of ADHD are unknown. Genes likely play an important role. Scientists are exploring whether other factors—like nutrition or a person’s social environment—also contribute.

There is no cure for ADHD. But treatment can help reduce symptoms. Treatment may include medication, psychotherapy, education, school-based programs, or a combination of these.

Some adults with ADHD are not diagnosed until later in life. They may have trouble getting organized, completing projects, or keeping appointments. It’s never too late to get diagnosed and treated for ADHD. Learn more about ADHD.