6 poses to burn belly fat on the mat Slim Your StomachFor a strong core, try this ab-focused yoga series Take a break from crunches and get the flat belly you want with yoga. As you work through these poses, you’ll engage your core muscles and concentrate on balance and breathing. If you can’t hold a pose for very long, don’t worry. You’ll build strength each time. Just do as much as you can and work up to holding each pose for 10 breaths. ...