Wall sits are a powerful isometric exercise that strengthens your core, legs, and lower back. Adding a reach engages your obliques, making this move even more effective for shrinking belly fat. It ...

Michelle Monaghan, who plays Jaclyn on the hit HBO show, has shown off her strong core in workout scenes, as well as shots by the pool while she lounges with her two childhood pals Laurie (Carrie Coon ...