Humans can survive for weeks without food, but only lasts a few days without water. The human body consists of 55-75 percent water. Water became one of the basic building block of blood, digestive enzymes, urine, sweat, and even contained in muscle tissue, fat, and bone.
Because the body can not store water, we need to intake of fresh water to replace water that has issued various vital organs of the body to sweat, urine, feces, and others. Total intake of water we need depends on our body's metabolism, temperature, weather, the food we eat and of course the level of activity we do.
Facts on Body Water Content.
Here are some water facts contained in the human body:
a) The water content in the body is more in men than women and decreased with age.
b) Most adults spend about 2.5 to 3 liters of water per day from his body. water expenditure will grow in hot weather conditions and a long training time.
c) The people who are older spent about 2 liters of water per day from his body.
d) Passenger air transportation will lose 1.5 liters of water during the first three hours of air travel. Loss of fresh water must be replaced.
e) Generally foods contain about 1 liter of water and rest must be obtained from the beverage.
Various Body Functions Require Water
Water as vital nutrients needed for :
a) Maintaining the health and integrity of every cell in the body.
b) Keeping the flow rate of liquid to facilitate the flow of blood through blood vessels.
c) Helps eliminate the remnants of the body's metabolism, excess electrolytes, for example sodium, potassium, and urea which is the residual processing of food proteins.
d) Regulate body temperature through perspiration.
e) Keeping humidity mucous membranes, such as those found in the lungs and mouth.
f) Lubricate and protect joints. Reduce the risk of cystitis by keeping the bladder disease free from bacteria.
g) Helps digestion and prevents constipation.
h) Working as a moisturizer to improve skin texture and appearance.
i) Bringing a variety of nutrients and oxygen in the blood cells.
j) Working as a damper on the organ bearing the eyes, spinal cord and amniotic sac fetus in pregnancy.
Water Content In Foods
Generally foods contain water, even that looks hard and dry though. The body can obtain up to one third water intake needs from food. The digestive process itself also produces water as a result of waste and can supply about 10 percent of the body's need for water. Needs the rest must be obtained from the fluid.
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