Among other things of interest and possible medical utility is the fact that most with European ancestry are 1 to 4% Neanderthal. Since they were around for at least 60,000 years some periods they might have had big noses and at others especially if young, small noses. I. think my husband had more than 4%. He had a man’s size when he was 13 which created issues about expectations and maturity which had troublesome results in later years. This is just one effect that might be predictable and have social utility.
Just curious, any way to get his DNA done, even by proxy (siblings, kids, etc)?