Why is sweat salty

People often say that sweat is the "air conditioner" of our body. According to Chinese medicine, we should sweat in summer because sweating is a good way to detoxify. In fact, there are two main ways for people to detoxify: one is through urination, and the other is sweating. In fact, sweating is the most effective way to detoxify. In fact, sweating is very good for our body. People who sweat frequently may have a question: why is sweat salty? Let's find the answer together.

We first did an experiment to prove this: we put dark clothes soaked with sweat in the sun. After drying, we will find circles of white marks on the clothes, just like salt. In fact, these white marks do contain the main ingredient of salt.

If we test the composition of sweat, we will find that sweat contains a large amount of sodium chloride. Some scientists have discovered through research that its salt concentration is 0.9%. Sodium chloride is the main component of the table salt we usually eat.

The food we eat contains salt, which will be absorbed by the human body and used to maintain the normal progress of various metabolic activities in the body. After salt is absorbed by the human body, there will be salt in the blood, tear glands, and sweat glands. Therefore, human blood, tears, and sweat all have a salty taste.

In the hot summer or after working or exercising vigorously in high temperatures, we sweat a lot and sodium chloride dissolves in the sweat and is excreted from the body, so the sweat tastes salty. However, as the water evaporates, the solvent that can dissolve sodium chloride becomes less and less. After the solution reaches saturation, if the water continues to evaporate, crystals will precipitate. The white spots are actually crystals of sodium chloride.

Because an important function of salt in the human body is to maintain the water balance in the body. If we sweat too much, a lot of salt will be lost accordingly. At this time, in addition to replenishing water, we must also replenish an appropriate amount of salt, otherwise it may cause muscle soreness, nausea, vomiting and other adverse reactions.

The above is an introduction to why sweat is salty. I think everyone understands it. Although sweating is a good way to detoxify, everyone should also note that sweating can be divided into physiological and pathological types. For example, sweating in hot weather or when exercising a lot is mostly a physiological phenomenon. However, one does not sweat spontaneously due to labor, thick clothing or heat, nor does one sweat profusely after a slight exercise. This is a pathological phenomenon. You must seek medical attention promptly and do not delay the treatment.