It's so cold, why do I always want to drink water when sitting in front of the computer? I drank a bottle of juice milk tea. Do you still want to drink? I don't usually drink much water.

Juice milk tea belongs to soft drinks. Soft drinks can cause dehydration, because thirst has never really eased, and habitual thirst will be formed.

These soft drinks are composed of water, refined sugar or artificial sweeteners (such as aspartame), spices, acids, pigments and so on. Some drinks also contain caffeine.

The best-selling soft drinks are cola drinks, that is to say, these drinks contain caffeine (50 mg per bottle and 85 mg per cup of coffee), so people who quench their thirst with a lot of soft drinks will lose some water. Because caffeine can raise blood pressure, increase urine production and excretion, and has diuretic effect.

As a result, the water in the drink quickly passed through the body. After water enters the blood, it has not yet entered the cells, and some of it has been transferred by the kidney and excreted.

In addition, the sugar content of commercial soft drinks is high, reaching 65,438+00% of the total beverage (70-65,438+020 g per liter of beverage), which further weakens its hydration ability. Natural sugar will not harm the body, but it is much more difficult for the body to complete the normal metabolism of refined sugar. A large amount of glucose released by white sugar quickly enters the blood, and the high concentration of glucose immediately increases the osmotic pressure of blood. In order to reverse this imbalance, the body must absorb water from extracellular fluid. Therefore, the intake of soft drinks usually leads to the decrease of liquid in the body.

But the dehydration of soft drinks didn't stop there. The body absorbs water from extracellular fluid, which will lead to thirst again. In order to quench your thirst, if you continue to drink soft drinks, you will suck out more extracellular fluid and dehydration will be aggravated. In fact, even if it leads to stronger thirst, people usually drink some soft drinks to quench their thirst. This forms a vicious circle, and the more you drink, the more thirsty you are.

It can be seen that soft drinks do have dehydration effect on the body, and people who drink soft drinks often will form habitual thirst. As thirst never really eased, they had to continue to drink more drinks.

Therefore, from the health point of view, commercial soft drinks do not quench their thirst and are not suitable for long-term drinking.