Here is a very interesting review article discussing genetics and its unproven role in East Africans' ability to win marathons: http://www.fims.org/default.asp?

Here is a very interesting review article discussing genetics and its unproven role in East Africans' ability to win marathons: http://www.fims.org/default.asp?pageID=782860264 http://www.fims.org/default.asp?pageID=782860264