The title is just the hypothesis. Their conclusion is the opposite: "The findings suggest that it is unlikely that Native Americans carry a genetic variant that

The title is just the hypothesis. Their conclusion is the opposite: "The findings suggest that it is unlikely that Native Americans carry a genetic variant that predisposes them to alcoholism. Certain variants of ADH and ADLH do have a protective affect against alcoholism in some Native American people; however, these findings do not explain the high incidence of alcoholism in the tribes that were studied."