History
People are busy. Most people have a hard enough time mustering the will to go to the gym, so the last thing they want to do once they've made the effort is waste their own time. But that's precisely what a lot of gym-goers do -- by engaging in useless exercises, or simply by exercising incorrectly -- they're negating any positive effects. Even worse, a lot of people hurt themselves while exercising, and it's not always sharp pains, but those dull aches that people attribute to training hard or