PEYTON MANNING CREDITS MUSCLE ACTIVATION TECHNIQUES™.

All the buzz this season surrounding Broncos quarterback Peyton Manning has been about his brilliant recovery from four neck surgeries over the past two years. But to learn why, at 36, he’s on pace to throw for the most yards (4,830) in his 14-year career, you have to go back before the operations, to a conversation he had with Trace Armstrong, a former Pro Bowl defensive end who played for the Bears, Dolphins and Raiders. Armstrong had just retired, and the subject was investments. Real estate? Bonds? Restaurants? Armstrong, known among his peers as a forward thinker, didn’t have much advice on those. “The greatest investment you can make,” he said, “is in your body. The opportunity to extend your career is huge.”