A tremendous amount of heat loss takes place from the head and neck. A well-insulated hat goes a long way toward keeping the whole body warm. A smart trick is a muffler or even a bandanna tied around the neck. Frostbite is freezing of the affected area. While rubbing may bring back circulation to chilled hands, feet, or face before frostbite actually sets in, it will only cause more tissue damage if actual frostbite has occurred.
Packed snow is a superb insulator, and getting out of the wind is the first key to survival.
Ordinary wax candles should be a part of any cold-weather emergency kit, and a single candle provides amazing warmth in a snug snow cave. B. Build a fire and get dry as quickly as possible. Wet feet in freezing weather are an invitation to frostbite. Concentrate on drinking plenty of fluid whether you feel thirsty or not. Eating snow is only a partial answer, for it takes surprising quantities of snow to offer significant amounts of water.