Pain is a universal feeling in humans, fought by many, and experienced by all. Triggered by several factors in a person’s nervous system, pain can be either sharp or dull. This feeling may come and go during the day, and may be constant at night. The severity of pain depends on which part of the body is afflicted. Some parts of the body have more sensitive nerve endings and, as a result register more pain intensity.
Pain is, quite ironically, needed in order for us to survive. The ability to feel pain helps a person realize or become aware of a certain injury or illness. Without the sensation of pain, a person might seriously hurt himself even without his knowledge. This is, in fact, the predicament of leprosy patients. Due to their inability to sense pain, they unwittingly injure themselves and, as a result, get seriously infected. These infections could be so serious that the leper might have to be amputated later on to prevent the spread of gangrene.
The feeling of pain belongs to a class of sensations known as bodily sensations, of which includes tickles, itches, orgasms, and so on. Being the most prominent member of this class, pain and other...
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