Is it dangerous to drink too much water?

All our organs contain water, even our bones. In total, more than half of our body is made up of it, or 45 litres for a person weighing 65 kg. The water we drink is needed to eliminate waste: 3 litres disappear every day via urine, perspiration and breathing. It also helps maintain our body temperature at around 37 degrees and is essential for digestion. The recommended daily intake of water is around 6, 25cl glasses of water a day, …