supposedly Neanderthal genes play a major part in modern humans’ immune systems:
https://www.smithsonianmag.com/smart-news/thank-neanderthals-your-immune-system-180957761/
I wish I can borrow my dog’s immune system. She has never even caught a cold in 14 years. And she runs around outside strip naked in cold weather.
The Neandertal Enigma"Frayer's own reading of the record reveals a number of overlooked traits that clearly and specifically link the Neandertals to the Cro-Magnons. One such trait is the shape of the opening of the nerve canal in the lower jaw, a spot where dentists often give a pain-blocking injection. In many Neandertal, the upper portion of the opening is covered by a broad bony ridge, a curious feature also carried by a significant number of Cro-Magnons. But none of the alleged 'ancestors of us all' fossils from Africa have it, and it is extremely rare in modern people outside Europe." [pp 126-127]
by James Shreeve
in local libraries