Perhaps the disappearance of types of human remains for long periods of time or forever were based on a new mostly fatal illness. If they were following large herds, an animal virus could have killed off their prey, or there could have been a jump from animal to human, like swine flu has done.
I wish I had a good sample of my late husband’s DNA. He had Scotish ancestry from his father, 1/16th Cree Indian from his mother, bright red hair and pink skin; very hairy chest and one shoulder, receeding chin which looked much better with a beard, extreme mesomorph body, light blue eyes, intense emotions especially anger; died of Alzheirmers age 75.
I have a theory that people from primative, isolated, tribal societies may be more likely to die of Alzheimers. My husband started wandering about 2 years before he died. I had to watch him like a hawk and quickly give him a snack because he tried to go out if he was hungry. This was after he had few skills to take care of himself but was still mobile. I would have to urge him back to bed at 4 in the morning when he wanted to go outside and walk in the city. As he became more physically compromised this behavior subsided. My theory is this behavior had survival value because in hunger times a person with this gene would get up at night (perhaps to pee) and wander off looking for food and freeze to death, or in a tropical or temperate clime be killed by preditors. Thus their food would be available for their offspring, In urban settings such wanderers would be brought back to their families.
I compared figures for Alzheimers in urban Africn countries and US Afro-Americans. The figure was much higher in the US, Now this could be bacause of diet, but I suspect many of the slaves brought here were captured from isolated villages, rather than from the major African cities. Anyway I think this is an interesting hypothesis that could use some research.
I guess we can backtrack from my 2 sons. Also my own DNA might be interesting. Half my origin is East Prussian/Polish from 1800s. There was Asian conquest blood left behind, especially in the upper classes like my grandmother. I have shoveled upper lateral incisors, which is possibly a Neanderthal trait. Also, my molars are very large. My other grandfather was Welsh, and his wife had early US American, mostly British origins. Anyone know which is the best ancestry company for Neanderthal analysis or facts?
No
But, I've always found this article interesting.
Ancestry.com does NOT give Neanderthal dna. 23and me does.
Maybe he has cousins on both sides?