I like to joke that my child has had attention-deficit/hyperactivity disorder (ADHD) since before he was born. The little guy never sat still in there--ever--and that didn't change once he waltzed into the world. Then he learned how to walk and talk, and he hasn't sat still or stopped talking ever since. As the exhausted mother of a child with ADHD who sometimes feels desperate for one moment of elusive silence, I often wonder: can he outgrow this?