In 1978, the World Health Organization (WHO) designated the year 2000 as the "due date" for world health. The Alma Ata declaration set the turn of the century as the target for a level of health that would permit all people of the world to lead a socially and economically productive life. ' At that (magic but arbitrary) date most infectious diseases and many chronic conditions, including diabetes and cancer, were expected to have been eradicated or at least controlled. Such predictions were based on solid foundations. In the 1 20 h century, and particularly since the 1970's, Western science...