Finally, far from focusing on a flat stomach, your deep core muscles work your pelvic floor and diaphragm. Your pelvic floor muscles are a group of muscles at the base of your pelvis, and ...

Sports icon and one of the most accomplished athletes of all time, Serena Williams, took to Instagram to share photos from a recent workout, showcasing her impressive physical shape and defined ...

Tennis legend Serena Williams shared pictures of her new six-pack in a series of post-workout selfies, showcasing the hard ...

Jessica Biel—who tied the knot with Justin Timberlake in 2012—got candid about staying fit while growing older and how she ...

Serena Williams has been hitting the gym—and she's rightly feeling proud. On Friday, the former tennis star shared a series of new selfies to Instagram, putting her abs on full display. "Working out ...

Corenswet's physical trainer breaks down the routine that helped the formerly svelte actor put on 40 pounds of muscle—and how ...

Landmine rotations strengthen your core, hips, arms and shoulders without hurting your back. Here's how to do them.

Despite very human traits of hating lunges and loving cereal, celebrity PT Paolo Mascitti tells us how Corenswet got in shape ...