Want to get a flat tummy! Start exercising. Dieting works but nothing is as good as exercise. It’s seriously the best and only way to tone those stomach muscles. Experts recommend that you exercise three or four times a week for about half an hour each day.
Tailbone lifts are a great exercise, targeting the lower ab muscles in particular. First, you have to lie down and stretch your arms over your head and legs. Cross them. Then exhale and lift up your tailbone. Lower and inhale but make sure to go down slowly. You have to repeat this about 30 times.