Water is the silent engine of human health. While we often obsess over macronutrients and vitamin supplements, we frequently overlook the most fundamental element of our survival. Understanding how much water to drink a day is not just about quenching thirst; it is about optimising every biological process from cognitive function to cellular repair.
In this guide, we explore the vital importance of hydration, the tangible benefits of drinking water, and the rare but serious side effects of drinking too much water.
TL;DR
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Water supports every body system, aiding nutrient transport, waste removal, joint lubrication, temperature regulation, and cognitive function, etc.
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Recommended intake varies by age, sex, activity level, and climate-generally 2-3 litres daily for adults, with higher needs for athletes and pregnant/breastfeeding women.
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Overhydration is rare but can cause hyponatremia, cramps, frequent urination, and nausea; drink steadily, use visual cues, and consult a doctor if thirst is excessive or medical conditions exist.
