Water in the body: more than just a liquid, a vital element. | June 20, 2025

Water: A vital element for the human body.
The human body is made up of approximately 60% water, although this percentage varies depending on age, gender, and physical condition. Water is essential for the proper functioning of the body, as it is involved in numerous vital processes such as temperature regulation, digestion, blood circulation, and waste elimination.

Temperature regulation:
One of the most important functions of water in the body is to regulate body temperature. During everyday activities, the body generates heat through the metabolism of nutrients. To prevent overheating, water dissipates this heat through sweating. When sweat evaporates from the skin, it has a cooling effect and helps maintain a stable body temperature. Without this mechanism, the body would not be able to withstand extreme temperature fluctuations, which could lead to serious problems such as hyperthermia.

Digestion and Nutrient Absorption
Water plays a fundamental role in the digestive process. Once food enters the body, water facilitates its breakdown. In the stomach, it helps dissolve nutrients so they can be more easily absorbed in the small intestine. It is also the main component of gastric juice and other digestive secretions that contribute to the chemical breakdown of food.

On the other hand, water is essential for transporting nutrients to the cells so the body can use them efficiently. Without adequate hydration, digestion slows down, which can lead to constipation and other gastrointestinal problems.

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