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Overview

Pain is an unpleasant sensation triggered by the nervous system. The ability to experience pain is critical for survival because it can make us immediately aware of injury to the body. Pain is an individual experience affected by environmental, emotional, and cognitive factors.


Pain can be a symptom of illness, result from an injury, or occur with no apparent cause. Pain that results from illness or injury and tapers off or stops on its own or with medical treatment is called a...Read the full article