My friend and client Dennis Withers came by today to thank me for “saving his life.” He was being dramatic of course, but he said because of the 3 months of pre-op exercise I made him do he was up walking really quick after a knee replacement. We focused on the hips, core, ankles and of course the knees too. Most of the things we did he’d never done in 60 years of exercise. Your body is like a chain- to be strong think in terms of the “links” that hold it together.