Studies in the Journal of the American Medical Association and elsewhere have shown that crosswords are good for the gray cells as well as an enjoyable pastime. This fun, brain-recharging title features: * 75 New York Times crosswords from easy to hard--solvers can choose the level of mental workout that's right for them* Edited by crossword great Will Shortz* Convenient travel-size volume is portable and affordable Studies suggest that adopting intellectually challenging hobbies like crossword puzzles...can boost your brain power.--Natural Health Magazine