As people develop hypothermia, their abilities to think and move are often lost slowly. In fact, they may even be unaware that they need emergency treatment. Someone with hypothermia also is likely to have frostbite.

The symptoms include:

• Drowsiness
• Weakness and loss of coordination
• Pale and cold skin
• Confusion
• Uncontrollable shivering (although at extremely low body temperatures, shivering may stop)
• Slowed breathing or heart rate

Lethargy, cardiac arrest, shock, and coma can set in without prompt treatment. Hypothermia can be fatal.