Exercise is the key to good health, both for body and mind-and now there's finally a way to make mental exercise simple, fun, even competitive. Inspired by the work of prominent Japanese neuroscientist Dr. Ryuta Kawashima, Brain Age features activities designed to help stimulate your brain and give it the workout it needs like solving simple math problems, counting people going in and out of a house simultaneously, drawing pictures on the Nintendo DS touch screen, and reading classic literature out loud.