Did you know the reason why we cry? | KNOW THE REASON

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What happens when you cry? Why do we cry?

While crying, a salty fluid chock full of protein, water, mucus and oil is released from a gland in the upper, outer region of your eye.

This fluid, better known as tears, then flows down the surface of your eye, across your face and smears your mascara.

Of course, not all tears are of the emotional variety. In fact, three types of tears exist, all with different purposes.

Basal tears are omnipresent in our eyes. These constant tears are what keep our eyes, from drying out completely.

The human body produces an average of 30 mililitre of basal tears each day.

They drain through the nasal cavity, which is the reason so many of us develop runny noses after a good cry.

The second type is reflex tears, which serve to protect the human eye from harsh irritants such as smoke, onions or even a very strong, dusty wind.

During irritation, the sensory nerves in your cornea communicate to your brain, which in turn sends hormones to the glands in the eyelids.

These hormones cause the eyes to produce tears, effectively getting rid of the irritating substance.

The third type of tears is emotional tears, and it all starts in the cerebrum where sadness is registered.

The gland producing system is then triggered to release hormones to the ocular area, which then causes tears to form.

Emotional tears are common among people who see Bambi's mother die or who suffer personal losses.