This book is both a personal and technical account of the experience of running by a heart specialist who began a running program at the age of 45. In its seventeen chapters, there is information presented on the spiritual, psychological, and physiological results of running; treatment of athletic injuries resulting from running; effects of diet on running; as well as the kind of clothing necessary and its function. Other topics covered are: stress and rest; feet and legs; heart and mind; age and ability; and the importance of play. (DMT)