Is Chained Up Barbells Really a Good Idea?

CNN's John Sutter answers your questions about exercise and fitness. We start with a question from Benjamin, who wants to change his exercises every two weeks. He says he has difficulty keeping one movement pattern in place for long periods of time. But once you've done it once, i think every two weeks you should change around. That whole concept, the of same but different, is not uncommon at all.