So, your diet has been on point, and you've been cranking out tons of situps at the end of your lifts, but still, the set of defined washboard abs you were promised has yet to show up. What gives? You ...

Add Yahoo as a preferred source to see more of our stories on Google. The old saying insists that abs are made in the kitchen. Of course diet is key, but what you do in the gym matters, too. Jeff ...