Hydration

Everyone needs to drink water in order to survive. When you are out in the woods, there's no way to know if the water is safe there. Most water sources are filled with a wide variety of bacteria and/or pollution. Here's what you should do if you are lost, far away from civilization and thirsty.

First things first:
"Make sure there are no dead animals in it," says Dr. Zimring. Deceased animal carcasses carry loads of bacteria and possible diseases that can pollute the water. This does not mean all water is off limits because a dead animal might be in it. If you don't see one, that's good, but you still have to make the water drinkable.

According to Dr. Zimring, "The best way to purify water is boiling. People bring filters and chemicals with them, but boiling is the safest way."