injuries and poisoning
Hypothermia
Symptoms of Hypothermia
Initial symptoms of hypothermia include intense shivering and teeth chattering. As body temperature falls further, Shivering stops. Movements become slow and clumsy. Reaction time is longer. Thinking is blurred. Judgment is impaired. These symptoms may develop so gradually that people, including companions of the affected person, do not realize what is happening. People may fall, wander off, or simply lie down to rest. When shivering stops, people become more sluggish and slip into a coma. The heart and breathing rates become slower and weaker. If they are very slow, the person may seem to have no signs of life (no heartbeat or attempts to breathe) even though the heart is beating very weakly. Eventually the heart does stop. The lower the body temperature is, the higher the risk of death. Death may occur at body temperatures below 88°F (about 31°C) but is most likely to occur below 83°F (about 28°C). 