Hypothermia is a condition that occurs when inner body temperature drops more than two degrees below normal. It means the body is seriously cold and losing heat faster than it can produce it. The body loses body heat four ways: Conduction, Convection, Radiation & Evaporation.
When people begin to lose heat from exposure, they will shiver and exercise to stay warm. These actions drain energy and slowly lead to exhaustion. The body’s energy reserves will be depleted and the body core temperature will drop further. If untreated, exposure leads to hypothermia, the number one killer of those who participate in outdoor activities.