Why tears are salted?

The question of why salty tears is easy to think but makes people have to stand for a few seconds because they don't know the reason.

Life is sad at times, when you laugh, but sometimes you make tears, cry . So, one of us has tasted the salty of tears.

But why are tears so salty you know? Is salty tears able to drown out the bitterness in my heart?

Science offers an interesting explanation for this "silly" question. N wish salty eyes because it contains salt. In addition to salt, tears also contain organic and inorganic chemicals such as lipids, lysozyme, mucin, lactoferrin and enzymes.

In addition to helping us express emotions, tears also help us protect the eyes.

This salt is not given by anyone but our own body. To put it more simply, salt is everywhere in our body, in blood, body fluids, all parts have the appearance of salt.

So it is not only salty tears, but even our sweat, saliva or urine also taste salty because it contains salt.

Need to say a little more, tears are not completely useless, instead they are like a lubricant to help prevent eyes from drying out.

In addition to helping us express emotions, tears also have a more important task - that is to protect the eyes from the invasion of bacteria and foreign objects, have the effect of killing and detoxifying.

An interesting piece of information for you, each of us produces 300ml of tears every day, which is about 113 liters per year! And tears are not only one type but they have until . 3 types.

It was background tears, reflex tears and emotional tears. Each type has different functions and is equally important.

Depending on the situation, your body will "switch" the switch to use the appropriate tear. Crying is sometimes not bad because they help you push the object out of your eyes or research shows that tears contain 1 level of enkephalin endorphin and natural pain reliever - help you regain your emotional balance in a good way. than.