70 percent of their body consists of water.Water in the body is divided into 3 sections: the water contained in a cell, the cell is approximately 60 percent, 30 percent and also in tissue or blood, another 10 percent, which makes it possible for a human to fall 2-3 litres a day – by driving water out of the body as urine. Feces, sweat and breath, which will drive out about half a liter per day urine. Up to 2.3 liters.