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Why Do We Need Water in Our Body - The Importance of Water

If we get thirsty and we have no opportunities to drink something, we feel such a great thirst that we forget about everything else.
We are all sometimes were thirsty, but can you imagine how it feels to someone who did not drink water for days?
If a person does not enter into his body any fluid for three weeks, he is sentenced to death.
Simply, our bodies need to supplement their supplies of fluid, although 50 to 60 percent of its weight is water!
An average adult loses during the day, about 700 g of water by sweating and excretes about 1.3 liters (0.34 gallons) through waste products.
On the other hand, regardless of whether or not we are drinking, we are still taking in water in our organism.
By digesting food, our organism gets almost 350 g of liquid a day. 
But this process of loss and fluid intake is not sufficient for keeping water level, which is essential to our body.

Why we need to drink water?

Thirst is a sign that warns us that our body needs more water.
Many believe that thirst is due to dry mouth or dry throat, but that's not true.
Thirst occurs for various reasons, such as stress, hard work or simply slow in the secretion of salivary glands. Their work can be increased (for example by taking lemon juice), but it will not affect our thirst.
In other words, the work of the salivary glands may be normal, the stomach, bloodstream and urinary bladder may be full of water and yet we still can feel thirsty.
So someone can drink a few glasses of brandy and still be thirsty, if between the patella ate salted peanuts.
The reason for this phenomenon lies in the fact that changes in the amount of salt in our blood causes thirst.
In the blood there are certain normal amounts of water and salt. If this ratio changes in favor of the salt, than we are thirsty.
In the brain there is a center for thirst that reacts to a certain amount of salt in the blood. If this amount changes, the center responds to the way that sends messages to the back wall of the throat. From there they go into the brain and because of these mixed feelings thirst is generated.

Benefits of drinking water

Water makes up to sixty percent of the human body.
If we were able to squeeze the human body like a lemon, we would get about fifty liters (13 gallons) of water. This water for the substances that contains is not like plain water.
In blood vessels there is about four liters of water, which is kept by the heart in constant circulation through the body.
The blood water with its constant flowing reaches every cell of the human body.
Water acts as a conductive of heat throughout the body. 
Even if we do not drink water during the day, one liter of water enters our body trough the solid foods that we eat as: vegetables, fruits, bread and meat which contain thirty to ninety percent of water.
In addition, everyone brings about two liters of water a day in liquid form.
Drunk water from the intestines goes into the blood.During the day, about ten liters (2.6 gallons) of water circulates between the various organs of the human body. 
For example, when we chew food, we're sucking at the same time a small amount of saliva from the salivary glands and is swallowed with food. Soon after the water in the salivary glands, is recovered from the blood vessel water.
The amount of water in the blood remains constantly the same. 
When we are very thirsty, after the hard work during the hot days, the vessels contain the same amount of water. No matter how much we drink water, the amount of water in the blood vessels remains the same.

What happens to the excess water?

It is distributed in various organs: intestines, liver, muscles and kidneys.

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