How to Recognize the Stages of Frostbite, and When to Get Help
by Elizabeth Yuko from Lifehacker on (#5VTJH)
When the temperatures are low and you're outdoors, it doesn't take long for your fingers to start feeling cold and stiff. Depending on the weather and how long they're exposed, they may start to feel numb, or turn red. But is this a normal reaction to the cold, or the beginning of frostbite?