Guess you don't have to torture yourself anymore

Still doing crunches to shape up those six-pack abs? Alwyn Cosgrove and Lou Schuler, a couple of strength trainers, say in their book, The New Rules of Lifting for Abs, that you don't have to.

Four reasons why:
1. Your spine is already flexed—don't make it worse. If your day is spent hunched over a computer or a steering wheel, your spine is in a constantly flexed position, leading to poor