The Minnesota Woman Who Froze Solid Overnight — And The Medical Miracle That Saved Her Life
The peripheral freezing was real and documented.
The extent of core freezing is less certain.
This distinction does not make her survival any less remarkable.
Surviving six hours at -22 degrees Fahrenheit with the degree of peripheral freezing she demonstrated, and recovering without any major organ damage, would be extraordinary regardless of exactly where her core temperature fell.
But the distinction is important for understanding the science, because it places her case within the realm of extreme-but-explicable hypothermia rather than in a category that would require invoking biology that does not currently exist to explain.
The Science Of Survival Mechanisms