the people who live on Papua mostly are not asian looking except in the west
my grandmother's partly got the asian and partly the papua genetics and my father looks a lot like an australian aboriginal, and papua natives look like this
i don't have a lot of external qualities like this but i'm pretty sure my digestive system is at least partly from that, and my mother also i'm pretty sure she also has celiac, but it's hard to know where that came from because there is some questions in my mind about autoimmune problems caused by polio vaccines in particular (celiac is an intestinal problem, polio is an intestinal virus)
even if environment is important the the place matters a lot too... australia, west papua...
and diet matters also, it's not just the dirt around you, it's what you put inside your body, and that is influenced by the australian system and who controls it