During wartime or a natural disaster, food shortages and lack of natural gas or electricity for cooking requires a great deal of improvisation and reliance upon back-to-basics cooking techniques used by our forefathers in order to survive. In an emergency it helps to know what to do with all that nature has to offer and how to make the best use of it. In order to have a proper meal you will have to improvise ways to cook the food available, for you and your loved ones.
The average person can expect to survive without water for three to five days (depending on the climate and what they try to do). Some instances show individuals have perished within hours of becoming lost. You must conserve any water you have, including that already in your body. Water is required to replace fluid that is lost, so by conserving body fluid you require less water intake.