How long are you resting between your sets in the gym? Do you even know, or do you just make it up as you go along? Maybe you don’t even take real rest periods (please say you do). Just as having rest ...

In gyms across the country, it’s a familiar scene: one set of squats followed by five minutes of small talk. What most gym goers don’t realize is that those rest breaks aren’t just filler, they’re a ...