Why Seniors Are Required to Take Care of Their Kidneys in Old Age?
Water, as you know, is the main component of our body. In the female body fluid is 5% less, due to a large amount of adipose tissue, in which it is not enough. From the age of 60, the amount of fluid, even in a healthy person, begins to decrease.
Part of the water enters the body with various drinks and food, the other part is formed in the body as a result of metabolic processes. Liquid comes not only from soups and drinks: even from dry foods, such as cereals, approximately 100 ml of water is produced for every 1000 kcal.
All the water that we get from drinking and food is absorbed into the blood. Then it goes to the kidneys and passes their “control”: the quality and quantity of substances dissolved in the blood are evaluated, unnecessary molecules are excreted in the urine, and the necessary ones, including most of the water, are returned back to the blood. When the kidneys work poorly, they reduce the amount of excreted fluid and the cells and the intercellular spaces overflow with fluid.
Of course, the fluid is not only excreted in the urine. 15 ml/kg of fluid is exhaled with air and lost through the skin. This volume increases if the person has a fever, is in hot conditions, or works in an intense environment.
The fact is, if all the incoming water is removed through breathing and sweat, then the blood will become thick and stop moving normally through the vessels. If you do not drink at least 1.5 liters of fluid per day, the normal exchange between intracellular and extracellular fluid will stop and the cells will begin to die.
In addition, only water can be excreted through the lungs and skin. On the other hand, various salts such as sodium, magnesium, potassium, calcium are likely to stay there almost all the time. As a result, their concentration will increase, and this may lead to tragic consequences.
The kidney is an organ that must maintain a normal balance of fluids in the body. Also, it helps dissolve various electrolytes as well as non-electrolytes in our body. When the kidneys stop working normally, all processes suffer. And this is not an exaggeration.
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