Book is written by a runner. Chapters are: "The Rise and Fall of the Human Empire; A Disneyland for Joggers; The Quest for a Coronary-Prone Characteristic; On the Edge of His Chair; Targets; 'They're Not Runners-They're Too Old'; Death of a Distance Runner; What Is Your True Athletic Potential?; The Battle of the Bulge; The Miracle Diet Doctor of the Mountains; Food for Athletes; Renaissance Sportsman; The Pain of P.E.; What Sports Are Best for Fitness?; The Semi-Obligatory Physical Examination Disclaimer; Keeping It Up; How to Live to Be 99."