In hot summer, people's water consumption increases with the temperature rising, and health-conscious friends set alarm clocks to remind themselves to drink water. But you know what? Blindly drinking a lot of water can easily lead to "water poisoning" and cause harm to the body. If not handled in time, it will even endanger life.

Recently, a Ms. Wang in Yuhang drank four liters of self-made salt water in an hour, which made her dizzy and nauseous, and finally she was taken to the emergency room.

Experts say that gulping water will increase blood flow, and the workload of the heart and the oxygen consumption of the myocardium will also increase accordingly. For people with bad hearts, there is a risk of heart failure. If the amount of drinking water exceeds the excretion capacity of the kidney, water poisoning will also occur.

So what kind of situation belongs to water poisoning?

First, the blood volume exceeds the normal value, second, the sodium ion is lower than 135 mmol/l, and finally, the osmotic pressure in plasma is lower than 280 milliosmotic equivalent. These three comprehensive situations belong to "water poisoning".

How to drink water to be healthy and safe?

First of all, in hot weather, don't wait until you are thirsty to replenish water, especially after outdoor work and strenuous exercise. Secondly, it is best to drink light salt water when replenishing water, not just pure water or boiled water; You can't replenish iced drinks when it's very hot. At the same time, don't drink too fast and too hard, just a few times, and try to replenish water when you are not thirsty.

Especially after exercise, you should choose to take a small amount of light salt water many times to avoid drinking a lot of water at one time, and a small amount is better.