Maybe some first-hand research is indicated?
There was a member at my joint that traveled extensively after his service. He said, "If you want to see proof that the Neanderthal genes are still among us, go to eastern Europe." Partly in jest, but...
These are the folks that dared to eat amanita muscaria, for God's sakes. That scares me, even though I used to be a truly serious head...
I know that there have been articles and studies supporting the idea that black folks respond differently to medicines regularly prescribed to whites. I imagine, barring cries of racism, that this is thing. Why wouldn't it be?
One of the problems with finding out about it for we unlettered is that most of the articles and data are paywalled.