POP QUIZ: HOW many reps and sets should you do per exercise to build muscle? If you’re in the know, you're aware that the answer is generally three to four sets of eight to 12 reps (although recent ...

Add Yahoo as a preferred source to see more of our stories on Google. When it comes to building muscle—or any fitness routine, for that matter—most people assume that more is more. More sets, more ...

One of the things I have often wondered is why muscle magazines and fitness books (online or in print) don't better explain ...