Hypothermia occurs when your core body temperature falls below normal. Hypothermia due to environmental exposure can occur during any season and in most climates. It can easily happen in cold winds or wetness. Hypothermia can also occur in moderately cool temperatures, particularly if coupled with dehydration. People tend to forget to drink on cool, wet days, and can get hypothermic even when the temperature stays well above freezing.
Symptoms of hypothermia include:
- Slurred speech.
- Weakness and loss of coordination.
- Confusion.
- Irrational behavior.
- Uncontrollable shivering (although, at extremely low body temperatures, shivering may stop).
- Pale and cold skin.
- Drowsiness – especially in more severe stages.
- Slowed breathing or heart rate.
Your body automatically begins to shiver to warm itself. As your energy is used up to keep warm, you may reach a point where your body will be unable to warm itself. If left untreated, your body will gradually shut down; and you can die.
You can avoid hypothermia with the following precautions:
- Stay hydrated.
- Avoid fatigue.
- Avoid cold winds.
- Change out of wet clothes.
- Be aware of the symptoms and act immediately upon their onset.
If you recognize hypothermia, take the following steps:
- Move the patient to shelter.
- Remove wet clothes and replace them with warm, dry garments.
- If the victim is alert, give them food and warm liquids to drink.
- Insulation protects from heat loss. Insulating materials include extra clothing, blankets, quilts, sleeping bags, and insulated pads.
- A sleeping bag should not be used like a blanket; rather the patient should be placed inside, and the enclosure should be completely zipped up. Multiple sleeping bags, if available, can be placed within each other to create a multilayered enclosure.
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