Attention deficit hyperactivity disorder (ADHD) and attention deficit disorder (ADD) are neurological and behavior-related conditions that cause difficulty in concentrating, impulsiveness and excessive energy. Individuals with ADHD not only have a challenge in concentrating but have a challenge sitting still. Those with ADHD are typically more disruptive than individuals with ADD. Autism spectrum disorder refers to a range of conditions characterized by challenges with social skills, repetitive behaviors, speech and nonverbal communication, as well as by unique ADHD often has an onset age of 7, but this disorder can continue through teen years and well into adulthood. It’s estimated that ADHD affects 9 percent of American children between the ages of 13 and 18 and over 4 percent of adult.