@gainspire: 😳Why Arnold Really Flexed In The Mirror #bodybuilding #arnoldschwarzenegger Everyone thinks Arnold Schwarzenegger flexed in the mirror to show off. But Arnold called posing absolutely essential, and he had a rule: never finish an exercise without hitting a pose. In his own words, Arnold explains which pose he hit after which exercise, and what he was really looking at in the mirror. Arnold Schwarzenegger posing, posing between sets, Arnold mirror, Arnold chest training, golden era bodybuilding, old school bodybuilding.