Is knee pain linked to depression?

In the U.S., about 13 percent of women and 10 percent of men aged 60 or older have knee pain due to osteoarthritis (OA). Osteoarthritis occurs when a joint becomes inflamed, usually because the protective cartilage and other ...

11 hours ago
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New strategies to combat opioid addiction

In 2000, a doctor from tiny St. Paul, Virginia, asked the School of Medicine for help with a terrible problem. Art Van Zee, M.D., a physician in a community clinic, reported that opioid abuse was sweeping Appalachian coal ...

16 hours ago
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Being hungry shuts off perception of chronic pain

Pain can be valuable. Without it, we might let our hand linger on a hot stove, for example. But longer-lasting pain, such as the inflammatory pain that can arise after injury, can be debilitating and costly, preventing us ...

Mar 22, 2018
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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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