I certainly don't think Asiatic admixture explains this, maybe to some Russians, Finns.etc. Many Germans with very European features aren't very hairy at all either. It's an independent adaptation. Africans are less hairy too, it's an environmental adaptation. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.