To start, lie on your back with your knees bent and feet flat on the floor. Don’t press your neck or lower back to the floor. Breathe deeply. You should feel comfortable and relaxed in this position:
Cross your arms loosely.
Tighten your abdomen and curl halfway up, keeping your head in line with your shoulders.
Hold for 5 seconds. Uncurl to lie down.
Repeat 2 sets of 10.