[Jedi Master Pikachu]

Smart advice, though the natural instinct could be to take some sort of action yourself.

[Jedi Master Pikachu]

Especially if your family is depending on you.

[Dead Dog]

I hear yah. And that is why this happens so often. They can't depend on you once you are hypothermic. The time to take action is before you head off to the mountains. Pack food, water, blankets/sleeping bags and be ready to stick it out for a week.

It's also a good idea to let people know where you are going and when you'll get back.