NEXT TIME you’re in the gym, look around. How many of the guys are trying to build bigger arms? Lots of them, right? Few of them, unfortunately, are going to succeed. “Most guys’ workouts won’t increase the size of their arms,” says David Pearson, Ph.D., of Ball State University. Many men just work until they can’t lift their arms anymore, which forces in enough blood to create a great“ pump” but does nothing to add beef.
