5. CROSS CRUNCHES
Lie down on your back with arms and legs diagonally out so that your body forms an "X." Keeping arms and legs in a straight line, bring your right hand towards your left foot, then your left hand towards your right foot, lifting your head, neck, and shoulders off the floor. That’s one rep. Aim for one complete set of 10 reps.
“It’s an easy exercise, and you’re safe and supported on the ground. With the legs coming off the floor, you’re working your lower abs. And because you’re coming at an angle, you’re hitting your obliques and your rectus abdominis, too.”