Running or jogging has become not just a habit but an indispensable way of life to millions of Americans, and their numbers are increasing at a startling rate. In every state of the union, and at any hour of the day or night, men, women and children are running. This is no fad; it is a phenomenon that is not going to disappear, for its benefits and rewards are so immediate and so striking that almost anyone who tries it for a week is apt to be smitten for
life.