Attention deficit hyperactivity disorder

Key facts Attention deficit hyperactivity disorder (ADHD) is a developmental disorder that begins in early childhood. ADHD affects your brain’s executive functioning — and your ability to self-regulate and control thoughts, words, actions and emotions. If you are concerned that you may have ADHD, the first step is to see a doctor. What is ADHD? Attention deficit hyperactivity disorder (ADHD) is a developmental disorder that begins in early childhood. ADHD used to be called attention deficit disorder (ADD). ADHD is often misunderstood. It can cause problems: concentrating becoming distracted being hyperactive (sometimes) being impulsive This may cause people with ADHD