“Without water, a human would not survive more than three days.”
That is a statistic, held true from the earliest ages. Water — or the H2O molecule, in scientific terms — is essential to all life on Earth, though, many of us drink it everyday without fully understanding all the vital reasons. Regardless of whomever we are, water never ceases to humble and surprise us. Water is the main constituent of the human body. Up to 60% of an adult man’s body is composed of water, in contrast to 55% for women, who have a great proportion of adipose tissues, which lacks in water when compared to muscles. The amount of water in the human body varies over the course of one’s life. As an infant, water can make up 75% of your body, but as you gradually age, the percentage of water composition in your body decreases. Water composition is also different within distinct parts of our body. High water composition is found in blood (79%), the lungs and heart (78%), the brain (76%), muscles (75%), and skin (70%). Parts of the anatomy holding a lower water composition include bones (22.5%) and adipose tissues (10%). Water is distributed in a 65%-35% ratio amongst the intra-cellular (water in the cells) and extra-cellar (water in plasma, interstitial fluids, digestive fluids, cerebrospinal fluid) sectors of the body, respectively.
Our bodies contain so much water in order to carry out physiological functions. Water is a solvent for biochemical reactions within the body, crucial for the kidneys to break down organic waste, which is then eliminated through urine. Water also holds heat from our body’s natural metabolism, contributing to our temperature regulation. Finally, water is essential for maintaining vascular volume, and serves as a medium to transport nutrients to organs. To understand, in detail, the dangers of inadequate hydration, we need to zoom in closer onto our bodies and cells. Our bodies wish to maintain the 65-35 ratio of water distribution between the intracellular and extracellular sectors. If there is a water deficit in the extracellular sector, equilibrium will eventually be restored, but at the cost of water transfer from the intra to the extracellular sector, thereby dehydrating the cells. Conversely, if the extracellular sector has an excess of water, equilibrium will also eventually be restored, but at the cost of transfer of water from the extra to the intracellular sector, which causes hyperhydration of cells. These variations in volume may be catastrophic for cell functionality.
To avoid such accidents, we must regulate our water balances by controlling the amount of water that enters and leaves our bodies. Each day, adults eliminate, on average, 2.5 liters of water through breathing, tears and sweat, urine, and feces. To avoid dehydration and achieve a healthy water balance, it is necessary to constantly replace lost water volume. Water is added to our bodies in the following ways:
Around 0.2 to 0.5 liters of water is produced naturally by humans’ oxidative metabolism, daily.
Foods, especially those rich in water content, such as fruits and vegetables, are composed of up to 40-80% water.
Regular consumption of water (and other liquids with high water content) is the simplest and most practical way to hydrate — pure water doesn’t even contain any calories!
Recommendations for one’s daily water intake, in North America, are established under the direction of the Institute of Medicine (IOM) — an independent American NGO — and organized via age and sex (though one’s need for water also depends on activity and climate).
Our kidneys control the bodily outlets that allow water entry, and maintains an optimal state of hydration, which ultimately regulates our water balance. Severe dehydration can have dramatic consequences, particularly for children and the elderly. Acute dehydration is one of the largest causes of infant mortality (20-30% of deaths) in the world. It is often caused by the supreme loss of water and electrolytes after acute diarrhea. The need for water, relative to body weight, is greater during childhood, which suggests that children are more sensitive to water loss and risk of dehydration, compared to adults. Dehydration is also common for people over the age of 65, as aging is accompanied by physiological changes affecting the regulation of one’s water balance. This includes decreased feelings of thirst, deterioration of the kidney’s ability to concentrate urine and retain water, as well as a decrease in muscle mass (due to a loss in bodily water reserves).
Our cells, tissues, and organs demand that water is an imperative and irreplaceable asset to our bodies. This is why the Bello team has been working, for several years now, on a new solution for purer, healthier, and even more environmentally friendly, water. — we plan to deliver it in the form of a breakthrough water purifier that is inspired by nature, and also allows you to customize the nutrients and minerals inside your water. We consider it our duty to create the best water for your health, and provide you with accessibility to it. The truth is, the body has needs that mustn't be ignored: water is arguably the greatest one.
The Bello team. To find out more, you can follow us on our website and social media platforms:
Site web : https://bello-solutions.com
Instagram : https://www.instagram.com/bello.solutions
Marie Courbebaisse, (Novembre 2015), « L’eau, un nutriment essentiel », Cahier de Nutrition et de diététique, vol. 50, p. 5-12.