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The National Weather Service is predicting arctic cold and bitter winds will spread across much of the U.S., and some states will experience dangerously low temperatures dipping well below zero. 

Providers at Mayo Clinic Health System believe this is especially concerning during the busy holiday week when many people are expected to travel.

One concern, if you are exposed to the extreme cold, should be frostbite. 

 “Frostbite is an injury caused by freezing of the skin and underlying tissues,” says Dr. Elizabeth Hustad, family medicine, Mayo Clinic Health System in La Crosse. “First, your skin becomes very cold and red, then numb, hard and pale. Frostbite is most common on the fingers, toes, nose, ears, cheeks and chin. Exposed skin in cold, windy weather is most vulnerable to frostbite. But frostbite can occur on skin covered by gloves or other clothing.”

 Signs and symptoms of frostbite include:

• At first, cold skin and a prickling feeling
• Numbness
• Red, white, bluish-white or grayish-yellow skin
• Hard or waxy-looking skin
• Clumsiness due to joint and muscle stiffness
• Blistering after rewarming, in severe cases

 But frostbite isn’t the only danger that can happen in the bitter cold. If you are exposed too long to the cold, you may experience a more serious condition called hypothermia.

 “Hypothermia is another medical emergency that occurs when your body loses heat faster than it can produce it, causing a dangerously low body temperature,” Hurstad said. “When your body temperature drops, your heart, nervous system and other organs can’t work normally. Left untreated, hypothermia eventually can lead to complete heart and respiratory system failure, and eventually death.”

Signs and symptoms of hypothermia include:

• Shivering 
• Exhaustion
• Confusion 
• Fumbling hands
• Memory loss 
• Slurred speech
• Drowsiness

 “Call 911 if you suspect someone has hypothermia. It is a medical emergency that requires immediate attention. While you wait for medical help to arrive, gently move the person inside or into a warm room or shelter.  Carefully remove wet clothing and replace with dry, warm blankets or coats,” Hustad said.