Hyper-activenesses can also be referred to as hyperactivity, restlessness, or overactivity. The state of being hyperactive is characterized by excessive movement, fidgeting, and an inability to sit still. Some other synonyms for hyper-activenesses include agitation, excitability, and impulsiveness. Hyperactivity can also be described as being high-strung, keyed-up, or wired. Children with Attention Deficit Hyperactivity Disorder (ADHD) are often labeled as being hyperactive, but adults can also experience hyperactivity. People experiencing hyperactivity may have trouble concentrating, completing tasks, or sitting still for long periods of time. Treatments for hyperactivity may include medication, therapy, or lifestyle changes such as regular exercise.