Twenty-nine service members stood in near-freezing water as researchers watched cold stress narrow the range of ideas they could produce
Twenty-nine active duty service members stood neck-deep in near-freezing water, then tried to think of words that had almost nothing in common. The result was more complex than a simple drop in thinking. The biggest early jolt of cold did not neatly predict who struggled most, yet colder skin still tracked with weaker performance once…






