The patient: A 25-year-old man in Germany
The symptoms: The man was on a ski trip in November 2008 when an avalanche knocked him unconscious and left him buried under snow for 15 minutes. His body tissues were starved of oxygen while he was trapped, leading him to develop a condition called hypoxia. His friend rescued him and immediately began CPR upon releasing him from the snow, Berend Feddersen, a neurologist at the University of Munich in Germany, and the lead author of a report on the case, previously told Live Science. He was then taken to a hospital.
