Extreme cold can bring as much of a health concern as extreme heat does.
Exposure to extreme cold can lead to hypothermia or frostbite.
"Frostbite is a tissue injury caused by the cold," said a MedExpress doctor, Dr. Bob Curtis. "It's comparable to a burn, except a burn is too much heat, frostbite it too much cold."
Dr. Curtis said frostbite's symptoms include the whitening or blanching of skin, and said the injured area can be painful or completely numb.
Frostbite occurs most often in the extremities or areas of the skin exposed to the elements.
If you happen to be outdoors or are sending your kids outside, it's important to be safe.
Dr. Curtis said dress in layers and cover as much skin as possible with hats, gloves, and scarves.
If you think you or someone you know has frostbite, Dr. Curtis recommends visiting a doctor right away.
The National Weather Service said frostbite can occur after five minutes in wind chill temperatures at 0-degrees and below. So the best way to avoid it, is to stay indoors.