Genetic variant linked to osteoarthritis favored in cold climates

Like many others, Ive been rewatching the Game of Thronestelevision series in preparation for the start of the seventh season later this month. So I dont think its all that odd that an image of Jon Snows first trip to the jaw-dropping Wall of ice (which rises 700 feet high) in the frozen north of Westeros popped up in my head as I began research for my latest release about human evolution, migration and genetic selection.

Source: Stem Cell TV

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