ADHD, formerly called ADD, stands for attention-deficit hyperactivity disorder (Refer here for a discussion of the two terms). The National Institute of Mental Health defines ADHD in the following terms: “Attention-deficit/hyperactivity disorder (ADHD) is a brain disorder marked by an ongoing pattern of inattention and/or hyperactivity-impulsivity that interferes with functioning or development.” It says this about the signs and symptoms associated with ADHD: “Inattention and hyperactivity/impulsivity are the key behaviors of ADHD. Some people with ADHD only have problems with... Read more