Why are our tears salty?

Whether it is happiness or sorrow, our eyes are the secrets of the heart. Are

When we are in pain, pain, anxiety, tears immediately flow from our eyes and it is an indescribable condition.

But have you ever wondered why tears are salty? Why do they taste ...?

The main reason for this is that: "When we cry in pain, our thyroid glands become more active and the heart beats faster, which is why the density of the glands changes and thus our tears are salty at this time." Become. "

But on the contrary, when we are happy and tears come to our eyes, they are tasteless because crying puts pressure on the brain and nervous system and thus the tears begin to contain physical salts.