15-Minute Crunch-Free Ab Workout
(A) Lie on your back, knees bent, feet flat on the floor. Inhale to expand your belly, then exhale to contract your abs toward your spine. (Imagine a scarf tied around your core, pulling your ab muscles together.) (B) Tuck your chin and raise your head off the floor, counting aloud for two. Return to the starting position for two counts. Repeat 10 times.