Weight gain
 
Here's why you shouldn't eat a ton of sugar with protein-rich meals
 
 
 
Celebrity workouts
 
Arnold Schwarzenegger's Mr. Olympia chest and back workout from 1974
 
 
 
CrossFit
 
The top 20 women to watch at the 2017 CrossFit Games
 
 
 
Injuries and recovery
 
The worst sports for your knees, according to science
 
 
 
Movies and TV
 
Henry Cavill grew a badass mustache for 'Mission: Impossible 6.' Here's how you can, too.