Water is essential for maintaining bodily functions. It makes up 45-75% of body weight, with lean tissue holding more water than fat.
Water is a key component of blood, digestion, and joint lubrication, and even slight dehydration (2% body weight loss) can cause fatigue, headaches, and cognitive impairment.
Daily water needs vary, but adults generally require 2-3 liters. Increased intake is necessary to compensate for fluid loss from sweating, illness, or heat exposure.
Both dehydration and overhydration can have serious health consequences. Severe dehydration may lead to kidney failure, confusion, and poor wound healing, while excessive water intake can cause hyponatremia, leading to brain swelling, seizures, and even coma.
To maintain optimal hydration, consuming mineral-rich water and ensuring safe filtration is recommended.
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