March 17, 2009
Jessica Burns asked: If you’ve always wondered why your abdominal muscles refuse to shape up, no matter how many hours of crunches you punish your body with, California researchers have some very welcome news for you.According to a recent study published by the American Council on Exercise, pushing yourself to accomplish a thousand crunches every second day isn’t the most effective way to tone, tighten and strengthen your gut. (…)

