Pain

'Dimmer switch' for mood disorders discovered

Researchers at University of California, San Diego School of Medicine have identified a control mechanism for an area of the brain that processes sensory and emotive information that humans experience as ...

Sep 18, 2014
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Study links vitamin D to quality of life

Canadians wait for it every year: the annual flight of the snowbirds in winter. Could there be an underlying health reason these birds take flight to sunnier climates? A researcher at the University of Alberta ...

Sep 12, 2014
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ER waiting times vary significantly, studies find

(HealthDay)—When it comes to emergency room waiting times, patients seeking care at larger urban hospitals are likely to spend more time staring down the clock than those seen at smaller or more rural facilities, ...

Sep 18, 2014
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Using computers to design drugs

Designing a new medicine is an expensive and time consuming business. Typically it takes around $2 billion and ten years for a new drug to move from its initial design in the lab, to the clinic. All the ...

Aug 22, 2014
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Team discovers fever's origin

Fever is a response to inflammation, and is triggered by an onset of the signaling substance prostaglandin. Researchers at Linköping University in Sweden can now see precisely where these substances are produced – a discovery ...

Aug 26, 2014
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Pain is an unpleasant sensation often caused by intense or damaging stimuli such as stubbing a toe, burning a finger, putting alcohol on a cut, and bumping the "funny bone." The International Association for the Study of Pain has a definition that is widely used: "Pain is an unpleasant sensory and emotional experience associated with actual or potential tissue damage, or described in terms of such damage".

Pain motivates the individual to withdraw from damaging situations, to protect a damaged body part while it heals, and to avoid similar experiences in the future. Most pain resolves promptly once the painful stimulus is removed and the body has healed, but sometimes pain persists despite removal of the stimulus and apparent healing of the body; and sometimes pain arises in the absence of any detectable stimulus, damage or disease.

Pain is the most common reason for physician consultation in the United States. It is a major symptom in many medical conditions, and can significantly interfere with a person's quality of life and general functioning. Psychological factors such as social support, hypnotic suggestion, excitement, or distraction can significantly modulate pain's intensity or unpleasantness.

This text uses material from Wikipedia licensed under CC BY-SA

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