Get a qualified personal trainer to work with you if you can to ensure you do the exercises right. At age 39, you're not destined to have poor posture forever. You can't spot-reduce, but you can tone and firm your abdominals with these exercises. Flat on back with knees bent, feet flat on floor, cross left foot over right knee. With hands behind head, elbows out, curl up slowly.
Touch elbow to opposite knee.
Go back down slowly. Repeat on other side. Do three sets of 10. Switch to other side. All rights reserved.