Exercise Myth: Crunches Will Give You the Best Abs
The reality: "The core includes the whole midsection -- front, back and sides. Crunches hit the rectus muscles in front [that make up the six pack], the obliques on the sides, but do little for the deeper muscle groups ,” explained Rubenstein. Instead just doing crunches, mix it up with planks and twisting exercises that work the entire core, he adds. It'll also help make those excruciating ab workouts more interesting.