How Do You Recognize and Treat Hypothermia in a Survival Situation?

Recognizing Hypothermia Stages

Early hypothermia shows vigorous shivering, increased heart rate, and rapid breathing. Moderate hypothermia brings weak shivering, slurred speech, confusion, and loss of coordination. Severe hypothermia eliminates shivering entirely, with the victim appearing unconscious or nearly dead—never assume they’re gone until warm and unresponsive.

The body’s survival reflex can protect organs even at extreme cold. Victims have recovered after being in cardiac arrest from cold for extended periods. Always treat even apparently lifeless victims with extreme care during rewarming.

Immediate Treatment Protocol

Move the victim slowly and gently to a sheltered location—rough handling can trigger cardiac arrest in severe cases. Remove wet clothing and replace it with dry insulation. For mild hypothermia, provide warm drinks and body heat from another person. For moderate or severe cases, avoid active rewarming; instead use passive external rewarming with blankets and shelter.

Do not rub the skin or apply direct heat, which causes peripheral blood vessels to dilate and draws warm core blood to the surface, paradoxically lowering core temperature further. This is called afterdrop.

Prevention in Cold Climates

Maintain body heat by staying dry, avoiding wind exposure, and eating high-calorie foods. Layer clothing to trap insulating air: base layers, insulation, and a windproof outer shell. Remove any wet clothing immediately and ensure shelter from wind and moisture. Stay active mentally and physically to maintain shivering heat production without exhausting yourself.

Watch for signs of poor decision-making and apathy in yourself or others—these are early hypothermia symptoms. Set strict rules about seeking shelter before exhaustion sets in.