Those in the search and rescue business call it the “umbles.” As moderate hypothermia overtakes someone, they start to mumble their speech. Then they start to grumble and whine a bit. They fumble and bumble, and have trouble with things such as backpack straps or zippers as they shiver and behave irrationally. Walking could lead to a stumble, like being intoxicated, and even a tumble. The end result of these symptoms can be death. Thankfully, there is much an outdoor enthusiast can do to prevent hypothermia.
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