Are you one of those who spend time on abs hoping to strengthen your core, define your waist, or just feel stronger, but feel ...

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 ...

Reason: "Your transverse abdominis muscle acts like a corset when dropping the legs to protect and support the body and spine ...