At 78 years of age Jack had few golfers his age to golf with. His friend Marcus was 73 and about ready to hang up his cleats for good. Marcus could play nine holes and that was about it; the next day he’d be too rundown to play again. Jack insisted that Marcus start doing the strength training program Jack had been doing for years. Jack said, "Anybody can stick to one half hour a week. You have nothing to lose and everything to gain."
A year later Marcus was playing 18 holes of golf, and the next day, he would play 18 holes again. He was hitting the ball farther and enjoying golf again. Marcus had added quality years to his life, and it took just minutes a week.
Every time Marcus exercised he would do a little more. Each week he gave himself ample time to recover, and because of that each week he would improve. 52 weeks of continuing improvement add up.