Pleasure and pain are part and parcel of our life. Blending of the
emotions like happiness, sad, anger glorifies the life.
Tears have the primary function of cleaning and lubricating eyes. Tears shed
down from eyes for different reasons. It may be reflex reaction like cutting
onions or dust in eye; it may be during extreme emotions like grief, sadness or
may be due to some underlying pathology.
It is a well-known fact that we cry when we laugh hard...But why??? Most probable
explanation is laughing hard creates pressure on nasolacrimal ducts. So tears
cannot flow into nasolacrimal duct as they usually do in normal conditions. At
the same time eyelids also close. Hence tears cannot flow into eyelid. So tears
come out. On the other hand it may be a homeostatic mechanism that brings
body to a normal state after extreme excitement accompanying the laugh.
Researcher William H. Frey, II found that emotional tears are rich in protein based hormones
prolactin, adrenocorticotropic hormone, and leucine enkephalin. Dr. Frey
had stated that crying releases chemicals that the body produced in response to
stress. Laughter and tears are helpful to tackle stress as both of them counteract
the effects of cortisol and adrenaline.
Always remember the fact - a good cry during extreme pain or pleasure lightens
your heart and bring peace to your mind !!!
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