Alain Sepeda <alain.sep...@gmail.com> wrote:
> human, by losing many "natural" pressure (resuistance to disease, survival > to pregnancy), > For most of history we have been under pressure from disease, especially in Eurasia, where population density was higher and mobility east and west of people and disease vectors has been much higher than the rest of the world. This has had a major long term influence on Asians and Europeans compared to people in the Americas and the Pacific. That is the theme of J. Diamond's book, "Guns, Germs, and Steel: The Fates of Human Societies" The removal of major infectious disease just happened a moment ago in evolutionary terms. It has not had any effect on people yet. The differing effect of infectious disease in Eurasia versus the Americas lasted long enough to have some evolutionary consequences, according to Diamond. - Jed