Introduction: Water is a significant piece of the human body. As it comprises around 60% of the body weight, as well as having numerous large capacities in all cells, tissues, and organs of the body and body liquids work in many capacities, like processing, supplement transport, and keeping a temperature For the body.

Aim. Shedding light on how water poisoning occurs.

Materials and methods: Theoretical analysis of medical scientific publications that were found in local and foreign specialized medical sites.

Results: Excessive drinking may lead to severe consequences, the most important of which is water poisoning, which is a condition of brain function that occurs when drinking a lot of water, which leads to the reduction of salts in the blood, especially sodium, so its concentration becomes less than 135 mmol/l, and this condition is called hyponatremia, so the concentration inside the cells becomes higher compared to the outside, so the fluids move from the outside to the inside of the cells, causing them to enlarge. when brain cells become larger, the pressure on the skull increases, which can cause headaches, nausea, and vomiting. In severe cases, more serious symptoms may occur, such as high blood pressure, diplopia, dizziness, difficulty breathing, muscle weakness and cramps,  brain damage, coma, and eventually death. Unknown exactly how much water can lead to water poisoning. It is desirable to overthink about it as far as how much water somebody devours every hour. The age, sex, and general soundness of an individual would all be able to assume a part. A sound grown-up’s kidneys can siphon out 20 to 28 L of water every day, in any case, they can dispose of around 1 L each hour. At the point when you drink more than 1 L every hour, your kidneys battle to keep up. Since the kidneys of older people and kids are less proficient, the measure of water they can securely drink every hour might be marginally lower.

Conclusions: Liquids are found inside and outside the cells of your body. The levels of these liquids ought to be steady. Taken together, about 40% of the body weight comes from fluid inside the cell, and 20% of the body weight comes from fluid outside the cell. Electrolytes in the body maintain balance in and out of cells.