A 1997 Outside article on facing death by hypothermia by Peter Stark.
But for all scientists and statisticians now know of freezing and its physiology, no one can yet predict exactly how quickly and in whom hypothermia will strike--and whether it will kill when it does. The cold remains a mystery, more prone to fell men than women, more lethal to the thin and well muscled than to those with avoirdupois, and least forgiving to the arrogant and the unaware.
Cherry stuff. I had heard about the English moor-walkers when I was a kid, and I never forgot that story.
(Via Maggie's Farm.)