Lost in the Amazon rainforest, without any supplies in the Sahara Desert, feeling the chill out in the frigid Arctic.

I'm sure you've got plenty of ideas of how to take care of yourself, right?

Well, forget them. They're probably completely wrong.

In fact, they're more likely to leave you as a pile of bones in a ditch somewhere.

So from peeing on a jellyfish sting to drinking that pee to stay hydrated,

here are some survival myths that could get you killed,

and what you should really do to survive.

You're listening.

You're listening. You're listening. You're listening. You're listening. You're being amazed.

If you ever find yourself stuck outside in a cold climate, one of the biggest risks to your safety is frostbite.

You've probably heard of it, but what exactly is it?

Well, it's when a person's skin and the tissue underneath winds up freezing.

It'll start out like a painful red patch, but if left untreated, we'll progress,

and your skin will stiff and numb and go a sickly gray.

In the very worst cases, it can even lead to tissue necrosis, which is where your skin literally dies.

Ew.

So if you've gotten cold enough to catch frostbite, you'll want to warm up.

Pronto.

Now, if your hands are a little cold, you rub them together, right?

Despite your first instinct, though, never rub anywhere you suspect might be catching frostbite.

This will only make things worse. A lot worse.

Yeah, rubbing frostbite skin will just cause more tissue damage.

...