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Tuesday, May 11, 2010

Why does the human body needs water?

Tuesday, May 11, 2010

Approximately 60% of the human body consists of water. If you can extort people, then you will get about 50 liters of water (for those with weight around 80 kg). This water is not like regular water because they contain substances vital for the body. Approximately 4.5 liters of water inside the blood vessels and is constantly circulated by the heart. Blood fluid is bathing every cell in the body with a constant flow. This fluid also acts as a heat conductor in the body. Even if you do not drink in one day, you still get about a quart of water from solid foods you eat. So, if you eat fruits, vegetables, bread and meat, you'll have water because the food is composed of 30% - 90% water. In addition, most people drink about 2 liters of fluid in the form of water.

In one day, about 10 liters of water back and forth in the body among various organs of the body. For example, when you chew something and swallow, you swallow the saliva from the salivary glands. In the next few seconds, this water is replaced in the glands with water from the blood vessels. Water that you swallow, will exit from the stomach and intestines into the blood. Amount of fluid in the blood is always the same. While you feel 'dry' after exercising on a hot day, the blood vessels filled with liquid in the same amount. And no matter how much water you drink, the numbers remain the same. What happens to the excess of water? Water is stored in various parts of the body. This was included in the intestine, in liver, in muscle and in kidney.


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