The viral "immersive workouts" will make you sweat and boost your mood — and actually work as a full-body warmup, according ...

Kelly Matsunaga was a professional ballerina turned stay-at-home-mom before she left her abusive marriage. Now, she's a fitness icon.

"Want to stay fit but don’t have the time—or motivation—for long workouts? This video breaks down the easiest, no-rules, ...