@nordtrack @pyrate @NonPlayableClown @Beomus @jeffcliff @lonelyranger @Brad Start with the simplest ones. Blood type was one of the earliest noticable differences. Is type O more common in Han or is there a dominant rh blood group that's noticably more impacted? I have a sizeable amount of Norwegian in me, and I understand that area tends to have some quirky blood mutations, like the one which makes some HIV immune. Might be related to my immunity towards the virus. Worth mentioning one of my children is identical in their indifference.