7. Frostbite can happen in as soon as 30 minutes.
In a temperature of 0F and 15MPH winds, you could get frostbite in 30 minutes. These conditions would cause the windchill to be -19F.
Your body works to keep internal organs and your head warm, so sometimes extremities like fingers, and toes get left behind.
When these parts get too cold forstbite kicks in. Symptoms include loss of feeling and lack of color. If this ever happens to you, seek medical attention.