Amount of water lethal to humans

In life, people more often encounter dehydration than overhydration - overloading the body with drunk water. This condition is also called water intoxication.

Oddly enough, medicine knows of cases of water poisoning with a fatal outcome. What is the lethal dose of water for humans?

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The importance of water for people

Water (H2O) is the basis of the organic world. No living creature can do without it. For our body, it is the second most important substance after oxygen.


The best advisor for healthy people is their own body with a well-established mechanism of water regulation. Drink water when you're thirsty, as much as you want. But if you feel unwell after drinking a large amount of liquid, you should seek medical help.