Why..................

Question

Why do people cry when they get hurt or sad? i know crying cleans your eyes.

Answer 1

I don't really know myself, but I read your question and came up with my own theory on the subject. I imagined myself crying because of some ridiculously saddening scenario and then imagined myself equally sad without crying... what I got was a feeling that crying provides you with a way to express your emotioins not only to allow yourelf to acknowledge your sad state of affairs but to alert others that you are emotionally incapacitated.

Its all about evolution

Imagine yourself as sad as can be with no way to express it. I did tried imagining how I would feel and I got the overwhelming sense of frustration on top of my grief. Crying occupies yourself while you come to grips with the cause.

It also accomplishes the necessary task of informing your neighbors that you are in no state to do much of anything. Imagine yourself as part of a small group of cavemen on the hunt (the most popular example for why human traits came about). Say your best friend or partner has just been trampled by a mammoth... your other clan mates who were not as attached to that person keep to the task at hand otherwise they risk starving that night. You have just lost a crucial part of your life and your mind has trouble coping. Crying provides your clan mates with the knowledge you cannot continue before it is too late. If you and your group continued not knowing that you are incapacitated the clan risks further dangers.

Answer 2

Different Types:

Basal tears keep our eyes lubricated constantly.

Reflex tears are produced when our eyes get irritated.

Third kind of tear is produced when body reacts emotionally.

Tears are just a system like everything else.. like blushing.

It just happens.