The term 'abnormally active' can be summarized as 'HYPER, ' which is a five-letter word. Hyperactivity is a condition in which a person exhibits an excessive level of energy, restlessness, and impulsivity. It is often seen in children, but can also affect adults. Hyperactivity can interfere with daily activities, making it difficult to focus and concentrate. Treatment for hyperactivity typically involves medication, therapy, and lifestyle changes.