This is a huge problem for polar explorers . it can cause fingers and toes to call off?

The issue at hand is likely frostbite, a serious condition that occurs when body parts, especially extremities like fingers and toes, are exposed to extreme cold for too long. In polar exploration, inadequate protection against the cold can lead to tissue damage, and in severe cases, can necessitate amputation. Proper gear, regular monitoring of body temperature, and timely intervention are crucial to preventing frostbite and ensuring the safety of explorers in frigid environments.