Now, the other interesting thing he said was the reason alcoholism is so rampant in American society-esp. native Americans, is that alcohol is so very new to us, and we haven't had enough time (as in generations) to weed it out. Alcoholics die early, have poor relationship skills....choosing the bottle over the woman/man, so no offspring...so, no passed on genetics, etc
Keep in mind though, that Native Americans metabolize sugar (and the sugar in alcohol) VERY differently than the average caucasian. So part of the high incidence of alcoholism among NA communities is related to that....