for example, if there is a scene that you are a he reading that's a very active scene, areas of the brain that are called the motor cortex that are responsible for movement, they may start to light up. if it is a particularly stimulating part of the book that you're reading, your sensory cortex which allows you to see, that may start to light up. there have been some interesting studies showing you don't necessarily have to read a book -- i recommend this one -- you can listen to an audio book. that can have some of the same beneficial effects we're talking about. keep in mind, the more you read, the more you know, the more you learn, the further you'll go. that was a different doctor, dr. seuss. but regardless, it will help you live to 100. he's a nascar champion who's she's a world-class swimmer who's stared down the best in her sport. but for both of them, the most challenging opponent was...