What is the role of water in the human body?
water in the human body plays an essential role by transmitting carbohydrates and proteins through blood and eliminating excess salts, minerals and other substances. Mensed hydration also keeps the body cold when temperatures rise and during physical activity. The water in the human body prevents constipation and keeps the skin soft and flexible. The lungs and mouth need water to function properly while the joints use water as lubrication.
Each cell in the body relies on water to dissolve chemicals, minerals and nutrients to be usable. If blood lacks enough water, it does not have to flow freely and bear enough oxygen into organs and tissues. The skin can be dry and cracked when water intake drops below the recommended level.
The water in the human body is about 70 percent of the total weight of the brain. Blood consists of about 80 percent of water, while the content in the lungs is about 90 percent of water. The liquid is also used by fat, muscles and bones to support optimal health. Water in the human body flushes bacteria from the bladder and canto prevent the formation of kidney stones. It also prevents constipation and transmits waste from the body through feces.
Every day, water in the human body is lost by urine, sweat and breathing. It must be replaced daily because the body cannot store water for later use. The amount of excreted water depends on the level of human activity, external temperature, individual metabolism and the amount of liquid consumed in food and beverages. Very active people and those who live in hot climate usually need more water because they often produce more sweat.
baby bodies contain a higher water content than adults and can dehydrate faster. Older people may have to increase water intake because the kidney function changes with age. An older adult could lose up to 2.1quarts (2 liters) of water a day through normal body functions. It is estimated that older people will gain half of this amount every day of food.
Dehydration can become a serious health risk, causing kidney failure. Symptoms include dark, yellow urine, headache and lack of energy. Lips and skin could be dry, along with a dry mouth. At a time when a person feels thirsty, there may already be dehydration that could prevent the concentration and ability to perform mental or physical tasks.
Most of the diet provides about half the necessary water in the human body. NutritionTists usually recommend drinking six to eight glasses of water a day to keep their health. These levels can be obtained from soups, fruits, teas and other foods. Patients who use drugs that increase urination may have to increase their daily water intake. People suffering from fever, twist or diarrhea can also quickly lose vital fluids.