What is this article about?
Pain is complex, subjective and varying. The International Association for the Study of Pain (IASP) defines pain as ‘an unpleasant sensory and emotional experience associated with actual or potential tissue damage, or described in terms of such damage’. Pain can range from mild to severe, affecting a localised area or several parts of the body. It is a highly personal experience that varies in intensity depending on the individual, even if caused by the same stimulus.