Hypothermia can start to occur in the very cold range if proper clothing is not worn. L ocalised freezing of exposed body parts can result in frostbite where the tissue is damaged by injury to the blood vessels, clotting of blood and ice forming in the cells. H ypothermia and frostbite are not common in Antarctica today. Modern clothing and extensive training in preventing these conditions has helped reduce these problems. W ind chill is a critical factor when living and working in Antarctica.
Heat is lost from the body by convection, and the faster air moves the more heat it can remove.