Michelle Obama Reveals Toned Stomach in New Instagram Pic The former First Lady has long <br />advocated for Americans <br />to live active lives. In the picture, the 55-year-old 'Becoming' author can be seen doing a lunge with an exercise ball. In a caption along with the photo, she shared the hashtag #SelfCareSunday. She also wrote that working out doesn't always feel great, but is glad to have done it. Michelle Obama, via Instagram During her time in the <br />White House, Obama championed <br />healthy eating habits for children. She also led the "Let’s Move!” campaign <br />to take on childhood obesity.
