According to the Encarta Dictionary; pain is the acutely unpleasant physical discomfort experienced by somebody who is violently struck, injured, or ill.Pain is a complicated process that involves an intricate interplay among numbers of important chemicals found naturally in the brain and spinal cord. These chemicals are called neurotransmitter, transmitting nerve impulses from one cell to another.
Pain is a nature warning that something is wrong with body and the most compelling problems of man. Through pain we are able to know when
something adverse is going on somewhere in the body. A man who feels no pain is thus as good as dead.
Pain enables us to pay attention to our body. A man who enjoys his food so much and has the tendency to overeat may not know it is time to stop if his stomach does not send some signals through pain to inform him that he has had enough.
