ADHD

Attention deficit hyperactivity disorder or ADHD often starts in early childhood. But an estimated 4% of adults have the condition—and many of them don't even realize it.

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More on ADHD

15 Signs You May Have Adult ADHD

About 4% of adults have attention deficit hyperactivity disorder (ADHD), and many others have never been diagnosed. (About half of kids with ADHD still have it in adulthood.) Here are 15 signs of adult ADHD.