If body cells lose or gain too much water by osmosis, they do not function efficiently. On the other hand, if the water concentration is too low outside compared to the inside of the cells ...

The kidneys produce urine and this helps maintain water balance. The urine is taken from ... until it is convenient to expel it from the body. Note that 'ureter' differs from the word 'urethra'.

Drinking excessive water can lead to water intoxication, causing symptoms like confusion, nausea, and seizures; severe cases ...

and have thrown the world’s hydrological cycle out of balance “for the first time in human history.” The Global Commission on ...