Lawyers sometimes are so busy practicing law and mastering technology that they make the mistake of considering workouts a luxury, something fun. Workouts can and should be that, but they are so much more: A key to productivity.

Jerry Muncy, owner of TypewriterCentral.com, shown here in Great Smoky Mountains National Park, is a classic example. Old enough to be a member of the Big Creek High School Class of 70, he nevertheless maintains a level of fitness such that he routinely outdoes 20-somethings in hiking mountains–and also in office productivity.