Dr. Hal Gordon is a neuropsychologist though his first degree was in physics. A neuropsychologist is one who tries to understand what the brain is doing when someone is doing a particular behavior (e.g., taking risks, making decisions, acting impulsively) or is in a particular state (e.g., anxious, stressed). He wants to know what parts of the brain are active when someone craves a drug. And he is interested in the connection between sleeping and drugs—taking drugs to stay awake, taking drugs to fall asleep, and how does taking drugs affect our ability to sleep normally. When not thinking about brains, Hal likes to travel, dance, and play squash. Oh, and his favorite sports teams are from Pittsburgh, especially the Steelers and Penguins.