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(HealthDay News) -- Frostbite occurs when the skin is exposed to extremely cold temperatures, says the U.S. National Safety Council.
Symptoms of frostbite include skin that looks waxy, pale white or gray-yellow in color. Affected skin also may feel numb, and very cold to the touch. The top layer of skin may feel stiff.
Frostbite can be superficial or a more serious form known as "deep frostbite" that frequently affects hands and feet.
To prevent frostbite, the council suggests wearing many layers of clothing whenever you're exposed to very cold weather, and immediately removing clothing that becomes wet.
You should also eat healthy foods and drink plenty of liquids that don't contain alcohol or caffeine.
-- Diana Kohnle
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