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The human body consists for a large part of moisture. Men have relatively more fluid in their bodies, they consist of 65% moisture, compared to women with about 50%. Babies have the largest percentage of bodily fluid, about 75%! Older people get less and less body fluid, making (among other things) this group also more susceptible to dehydration. What a lot of water, but what do we really need it for?
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What does water do in your body?
The effect of water in the body is important at the chemical level. A molecule of water, as the known chemical designation also shows, consists of 2 hydrogen atoms (H) and 1 oxygen atom (O). The official name is dihydrogen oxide, but of course that is not as good in the mouth as a cold sip of water.
6 Facts about drinking water. Water is a polar substance. This means that in the middle of the H2O molecule, the positive and negative charge do not coincide. Very interesting, long story. Grab your Binas if you want to continue this. We limited ourselves to the following facts.
The polarity of water ensures that it sticks together well (you can not pick up a piece of water). In addition, it functions as a solvent, because polar substances like to dissolve in polar substances, by means of diffusion (and osmosis). Think of diffusion when making tea: you do not have only one dark piece of tea in a large glass, but the substance 'wants' to spread evenly over all molecules.
This also works in the body. Think of an infusion of fluid: you do not get a splash of water in the bloodstream, but drop by droplet the water (often with a little salt and glucose) mixes with the blood so that it is nicely evenly replenished. Otherwise you would get one piece of highly diluted blood.
If there is a semi-permeable membrane (ie semi-permeable, such as a membrane, cell wall, etc.), we speak of osmosis. Here, for example, a transport protein or push-and-pull mechanism is needed to move the substances in and out of the cell. Water, an essential nutrient.
Just a side road: there are also a polar substances. For example, fat is composed of a polar molecules. That is why fat does not dissolve in water, but it floats on it. We also call this hydrophobic. A middle road is a mi cellar molecule that can connect fat and water and is widely used in the cosmetic and food industry, often under the name of emulsifier.
Intracellular and extracellular water
But where is that water (or moisture) actually all in our body? After all, we are not walking bags of blood (only 5 to 6 liters). We distinguish in the place where we find the fluid in the body.
For example, we have intracellular and extracellular water (inside the cell, and outside the cell). In addition, we also have moisture that is relatively 'free' in the body, such as lymph or cerebrospinal fluid, saliva, snot, tears, sexual fluid and natural blood.
This moisture is not all pure water. There are substances dissolved (which is so easy going, because water is a good solvent, we just read). In this way we can excrete waste materials, or supply the cells with the right nutrients, so that they can do what they do.
Moisture acts as a means of transport in, for example, the bloodstream and the lymph vessels. It brings nutrients and hormones from and to the organs from the digestive tract, or waste products from the muscles or organs back to the kidneys and the bladder, where the water is also used to drain the waste materials. Drinking lemon water in the morning is good for you.
Functions of water in the body
Function 1: cooling
One of the most well-known functions of water is regulating body temperature. If you drink a glass of cold water, that cold water comes into your stomach. The body wants everything at the same temperature: heat conducts, a bit similar to diffusion.
Water is heat-binding. That means that it takes a lot of energy for the body to let the temperature rise. By sweating, the water reaches the skin through the pores. The body then automatically heats the sweat to its own temperature with the heat that has been released from, for example, your workout.
However, the water assumes the temperature of the largest presence, and that is the environment. As a result, the water cools down and takes the body along in the falling temperature. Partly for this reason, it is recommended to drink cold water during exercise: so you also cool yourself from the inside. Watch out, not too cold, because the stomach can cramp from there. Prevent muscle pain by drinking water.