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PT ENIt’s very importante to observe that one shouldn’t wait for thirst to then consume water. Thirst is a symptom of dehydration, what means that the body is already in debt.
When the lack of water reaches close to 1% of body weight, an alarm system about dehydration danger begins: Kidneys drastically reduce urine production while the water in the body is redistributed, flowing to the other organs, essential to mantain the vital functions such as heart, brain and lungs.
A region where water begins to disappear at the first sign of dehydration is the buccal mucosa. This is the cause for the dry mouth sensation, when you feel thirsty. It is worth noting that the body is constantly losing water. Only with perspiration, urine and bowel movement, you lose 1.5 liters per day.
It is recommended, then, consumption of 2 liters of water per day, depending on the needs of each individual hydration. It is true, that athletes require larger quantities.
Between 60 and 70% of our bodies are composed of water. Organs such as kidneys have up to 83% of water, while heart, lung and blood have around 80%. So, the vital function of many organs depends on the amount of water in the body.
That’s why, water is essential for life. Quenching thirst is the first instinct of survival, high above the hunger satisfaction. If a person can spend up two months without solid food, could not bear more than 48 hours without liquid consumption, in this case causing serious health risks. The loss of 15 to 20% of the body water can lead a person to death by uremia, which is the blood poisoning.
Water is also important for the digestion, to regulate the body temperature, to ensure kidneyhealth, bladder, and prostate, and the absorption of oxygen by the lungs. It also acts as an eye lubricant and among bones has vital participation in the brain and nervous system functioning.