The youngest son of Maria Shriver and Arnold Schwarzenegger showed off his toned arms amid his ongoing fitness journey.

Christopher Schwarzenegger is giving his half-brother Joseph Baena a run for his money when it comes to their biceps. The ...

From J.Lo’s no-rest training to The Rock’s 4 a.m. workouts, these six celebrities redefine what it means to stay fit. In this video, we break down the most extreme fitness routines in Hollywood—where ...