Vital Signs: There's Hyperactivity...and There's Hyperactivity - Discover Magazine Hey, Mom! Mom! Watch me! Look, Mom! I could hear the excited cries through the closed door of the examining room, even though I was still 20 feet down the hall. The happy shouts were followed by a loud thump and then a cascade of muted crashes. As I headed toward the commotion, my medical assistant smiled and handed me the chart for this patient. Youd better get in to see this little guy quickly, Dr. Cohen, before he totally wrecks your room!