Hypothermia is defined as a body core temperature below 35.0 C (95.0 F). Symptoms depend on the temperature. In mild hypothermia there is shivering and mental confusion. In moderate hypothermia shivering stops and confusion increases. In severe hypothermia there may be paradoxical undressing. Symptoms: Shivering, although as hypothermia worsens, shivering stops. Clumsiness or lack of coordination. Slurred speech or mumbling.
Symptoms: Shivering, although as hypothermia worsens, shivering stops. Clumsiness or lack of coordination. Slurred speech or mumbling. Confusion and poor decision-making, such as trying to remove warm clothes. Drowsiness or very low energy. Diagnosis: Defined as a core body temperature of 32-35 0 C, the person has pale and cool skin, with numb extremities. The person is sluggish and drowsy, and shivers uncontrollably. The heart rate and breathing are higher than normal in Mild hypothermia.
Treament: Move the person indoors or somewhere warm as soon as possible. Once the person is in a warm environment, carefully remove any wet clothing and dry them. Wrap them in warm blankets, towels, or coats (whatever you have available), protecting their head and torso first. Encourage the person to shiver if they're capable of doing so. If possible, give the person warm drinks (not alcohol) or high-energy foods, such as chocolate, to help warm them up.
Epidemology: At a core temperature of around 28 C (82.4 F) heartbeat irregularities may occur - called cardiac arrhythmias - this can lead to an uncoordinated twitching of the heart muscle preventing it from pumping blood properly and so resulting in death. Even if this does not happen, the heart will stop beating completely at around 20 C (64.8 F) causing death.