Humans and most animals are known to cry and when they do, they release a clear salty liquid from their eyes which are called tears. This phenomena also occurs when the eye is irritated. We have atleast once in our life tried to taste our tear. Most of us have tried this when we were kids as that is the age when we cry the most but if you remember the taste, you would recall that it was salty. Most of us have always wondered why. Let’s look at some facts about them and try to determine why.
Tears formed through crying are usually associated with strong emotions such as sorrow, happiness, pleasure. Even yawning can lead to the secretion of tears.
Basal tear helps in keeping our cornea nourished and lubricated. They also keep our corneas dust free.
Irritation to our eyes due to any foreign particles or irritating presence such as onion results in the formation of reflex tear.