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It is a fact that humans can survive much longer without food than without water. Our bodies are composed of more than 50% water. We lose about two liters every day in breathed out moisture, urine, bowel movements and sweat. We must replace the lost fluids, but since most foods contain up to 70% water, we do not have to drink two liters each day if we are consuming a normal diet.

If we are in a wilderness survival situation, normal food intake is probably not possible. Many of the foods that we pack into wilderness areas are dehydrated, meaning the moisture has been removed or reduced. Therefore, water or fluid intake is essential to life.

If we are in a temperate zone, securing water might not be too hard. Making sure it is safe to drink is another matter. Lightweight water filters are great, but do not necessarily remove all contaminants or parasites. Iodine tablets may be used, but if you have a thyroid condition, you should not use them. Good old fashioned techniques like sustained boiling may be a better choice. If you use this technique, be sure that you let the water boil actively for several minutes to be sure all the organisms are killed. If you have a water filter and fear that other contaminants are in the water, use the filter in addition to boiling for extra safety.

If you are in an area where there are no streams, you can use a sheet of plastic and a container to obtain water by condensation. Dig a pit and place the plastic over the pit. Secure the edges with rocks after placing a container in the bottom of the pit, under the plastic. Place a small pebble or rock in the center of the plastic, directly over the container. This should make the plastic sag over the top of the container. Overnight, condensation should form on the plastic and drip into the container.

If there are trees or bushes, you can place plastic tightly around foliage and leave plastic for several hours. Transpiration will occur and moisture will condense onto the plastic and run to the lowest point. You can tear or cut a small hole at that point and let the moisture drain into a cup. Re-seal the hole with duct tape or rotate to a higher point so water will not drain out as collected.

Sometimes water can be located by digging in dry creek beds or low damp areas and waiting for water to drain into the area. This may be contaminated and will need to be purified if you have the means to do it.

Water can be obtained from certain plants like cactus. You should research the area where you will be traveling and make note of any plants that would provide water sources.

People can find themselves in dangerous situations, but the truth is that many of these could be avoided by intelligent preparation. Plan ahead and be aware of dangers that could place you in jeopardy. Carry water purification equipment and first aid supplies. This can be lightweight and often unused, but when you need it, it could save your life.

Learn more about this author, L. Woodrow Ross.
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