To determine whether “water intoxication” requires consideration of a number of factors, including the amount of water consumed by the individual, the rate of drinking, physiological conditions, the use of drugs, etc. Usually there is no fixed value. Usually not a fixed value, healthy people drink too much water generally does not cause water intoxication, but when the body has a serious kidney disease caused by oliguria or anuria, as well as transfusion of hypotonic fluid too much too fast, water intoxication will occur. If a healthy person continues to drink a lot of water in a short period of time, far exceeding the amount of kidney discharge, after a period of time, water intoxication may also occur, but this situation is more rare. The main symptoms of water intoxication are a drop in plasma osmolality, headache, mental disorientation, drowsiness, elevated blood pressure, vomiting, and ultimately the development of increased intracranial pressure, which can even be life-threatening. It is unlikely that a normal person would be able to consume large amounts of water in a short period of time leading to water intoxication. Water intoxication is more often due to primary diseases, such as increased compensatory secretion of antidiuretic hormone, renal function abnormalities and so on. Therefore, normal water intake does not need to worry too much about the problem of water intoxication. The Chinese dietary guidelines recommend that adults consume 1500 ml to 1700 ml of water a day, which needs to be adjusted appropriately according to other circumstances such as temperature and exercise. Drinking water in moderation is good for your health, but you should not drink too much. If you feel unwell, please seek medical advice.