Why Do We Need Water to Survive?

Answer

We need water to survive because we depend on it to keep our bodies hydrated. Our bodies are made up of between 50% to 70% of water and amazingly our brains comprise over 80% water. It is therefore obvious that we need to take water to keep our bodies functioning.
Q&A Related to "Why Do We Need Water to Survive"
Water is essential to life. Our bodies depend on water just like food. The organs in our bodies rely on water to function properly. Water helps us to stay hydrated.
http://www.ask.com/web-answers/Science/Nature/why_...
Every system in your body depends on water. For example, water flushes toxins
http://www.chacha.com/question/why-do-we-need-wate...
Whether it is cleansing your body of toxins, transporting oxygen to cells or keeping your body temperature where it should be, the benefits of drinking the proper amount of water
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If you don't drink it you die!
http://wiki.answers.com/Q/Why_is_water_needed_for_...
1 Additional Answer
We need water to survive, to replace the water we lose through sweat and urination. The majority of our bodies are made up of water. If we didn't replace our fluids as needed, our bodies wouldn't be able to function. You can find more information here: http://www.rsc.org/Chemsoc/Chembytes/HotTopics/DrinkingWater/whywater.asp
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