Many people have heard of ADHD. It may make you think of kids who have trouble paying attention or who are hyperactive or impulsive. Adults can have ADHD, too. About 4% to 5% of U.S. adults have it. But few adults get diagnosed or treated for it.
Who gets adult ADHD? Every adult who has ADHD had it as a child. Some may have been diagnosed and known it. But some may have not been diagnosed when they were young and only find out later in life.