cut > I agree, we, in the U.S. do love statistics and do use them, sometimes very > manipulatively, sometimes very accurately. Please tell me how Yankees are > genetically different from others - I would love to know. It is quite obvious indeed. The mixing of genes in the US gene pool is different of other pools. A simple example (sorry for the poor or even wrong english): Falciforme anemia is much more common here because we have more genes for it (more black people in our origin) than yankees. Yankees have less protective genes against melanoma (skin cancer) than us (because yankees are less black than us, etc... etc...). Moreover the *combination* of the same genes in two different genetic pools EVER leads to different phenotypes, life forms and behaviors. hod > I bet you loved > the book "The Bell Curve" if you believe that. However, culturally, a lot of > the people who came and settled here were rebellious, protesters, prisoners, > along with very solidly religious persons such as the Quakers, Calvinists. Here too -- but unfortunately only prisoners, aristocracts, priests and black slaves and only catholics. Less diversity and less culture transference. We are more "insular". hod > The combined cultures of the early immigrants here would lend itself to > rambunctious yet impatient people. Another thought: when looking at the > history of humankind, humans were hunter-gatherers for millions of years and > industrialized for a little over 100. To expect children to sit in a school > for approximately 8 hours a day with breaks only for lunch and recess goes > against millions of years where the boys hunted all day with the men Not all the boys. Only the average boy and only after an age-limit. Lots of boys die before to be able to hunt. hod >and the > girls followed their moms gather roots and berries. All of us descended from > hunter-gatherers, so what genetically would account for the difference in > ADHD rates between the U.S. and Europe? Are you kidding? We are not equal/different only because we have/don't have common ancestors! In this way of logic we should have the same properties of an amoeba and nothing more at all (same ancestor in cambrian explosion). Finally here, you only re-estated the original problem. Of course the best answer to this problem will come from neuroscience coupled with the behaviorial genetics and not from the church (left wing, right wind, conservatives, nuts...). You also could note that USA have not only more and better stats/tests/science but also a more intense and recent and rapid population's growth in big cities and slums ("rapid-fire expansion" of its own gene pool). And "criminal" slums, for instance (slums which produce wealth from criminal violence and drug commerce -- here quite well studied) have more problems, because they have "panmictic-type" populations due to continuous imbreeding and local selection. Unfortunately, no chance to "nerds" in our slums... They have almost no kids. Can you imagine the type of personality (we measured it) of status-males who have more wives and kids in our favelas (slums) in Rio? Regards from Brasil! %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%