Question

When do tears know when to come out?

Answer 1

Tears are a result of excessive irritation in the eye. You may also have noticed that when something gets inside your eyes, it is followed by tears. Although years are also related to crying, are called Physic tears. They contain a a natural painkiller, as a result of which we feel good after crying. Tears are also caused by strong emotions, including anger, happiness, and obviously, crying.

Answer 2

Our eye has special parts called glands that make tears all day. Normally they only produce a tiny amount of tears less than half a teaspoon per day. Tears are mostly water and a little bit of salt, but they also have some oil, mucus and chemicals called enzymes that kill germs.The part of the brain that switches on the (tear fountain) receives signals from the part of your brain that controls your emotions.

Hope it helps you!!