Overview:
Frostbite is an injury caused by the exposure of parts of the body to extremely low temperature (freezing). It causes damage to the skin and underlying tissue, as well as numbness and discoloration of affected area. Frostbite can affect any part of the body, including the nose, ears, cheeks and lips, but is most common on the fingers and toes.
Frostbite, frostnip, freezing
Blood carries oxygen throughout the body. However, when the body is exposed for a long time to low temperature (e.g. cold weather, or touching ice, frozen metals or extremely cold liquids), the blood vessels redirect the oxygenated blood to the vital body organs, as a precautionary response, leading to deficiency of the blood supply to the limbs.
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