I always thought that Attention Deficit Hyperactivity Disorder (ADHD) was a kid’s condition. You’d often hear about it in the context of some kids complaining that their classmates got special permission to—what they claimed was unfairly—take their tests and SATs untimed. Recently, though, a galley for a new book due out in February crossed my desk. It’s titled FAST MINDS, and written by noted Harvard psychiatrist Dr. Craig Surman and Dr. Tim Bilkey, founder of the The Bilkey ADHD Clinic for Women in Toronto. I learned that 4% of the adult population has full-blown ADHD and many more (10%) have enough of its traits to keep them from performing to the best of their ability.