C___SW__DS

Clue: Medically proven brain-building technique that's lots of fun, too

There's no better way to relax, recharge, and re-energize your brain than by solving a crossword puzzle, as recent studies, including one in the Journal of the American Medical Association, have shown. So what are you waiting for? Pick up a pencil and get ready to give your cerebral muscles the most enjoyable workout they've ever had.

* 75 great New York Times crosswords from legendary puzzle editor Will Shortz
* Arranged in increasing order of difficulty, so your...