lth is as much a cultural value as an objective state of being. Among the Indians of one South American tribe, reports mi- crobiologist Ren6 Dubos, a skin ailment called pinto, is so pre- valent that the unaffected are considered to be ill. In China. health (jian-kang) is regarded as a matter of physical and psy- chic harmony. In France, santk is a quality one "possesses." Americans are of two minds. Since Colonial days, health has been associated with purity: of the soul, of food, of...