The Minnesota Woman Who Froze Solid Overnight — And The Medical Miracle That Saved Her Life
When the core temperature begins to drop, the body’s compensatory mechanisms activate in a specific sequence.
In mild hypothermia (core temperature 89.6 to 95 degrees Fahrenheit, or 32 to 35 degrees Celsius), the body responds with vigorous shivering — the rapid, uncontrolled muscular contractions that generate heat — and intense vasoconstriction, the narrowing of blood vessels in the skin and extremities that reduces heat loss from the surface.
The person is cold, uncomfortable, and shivering hard.
In moderate hypothermia (core temperature 82.4 to 89.6 degrees Fahrenheit, or 28 to 32 degrees Celsius), the mechanisms begin to fail.
Shivering may paradoxically stop as the muscles lose their ability to contract effectively.
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