Pain is an unpleasant sensation which may be associated with actual or potential tissue damage and which may have physical and emotional components. According to the International Association for the Study of Pain (IASP), one should distinguish between pain and nociceptionIASP pain glossary. The word "pain" comes from the Latin "poena" meaning a fine, a penalty.
The term "pain" is a subjective experience that typically accompanies nociception, but can also arise without any stimulus, and thus includes the emotional response. Nociception, on the other hand, is a neurophysiological term and denotes specific activity in nerve pathways. It is the transmission mechanism for physiological pain, and does not describe psychological pain. These pathways transmit the nominally "painful" signals, though they are not always perceived as painful. Although pain can be associated with tissue damage or inflammation, this is often not the case.
Despite its unpleasantness, pain is a critical component of the body's defense system. It is part of a rapid warning relay instructing the motor neurons of the central nervous system to minimize detected physical harm. Lack of the ability to experience pain, as in the rare condition Congenital insensitivity to pain or Congenital Analgesia, can cause many various health problems.
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Palliative Care

Ask Your Surgeon - Provides information about post-operative pain, the patients' role in post-operative pain relief, and post-operative pain relief options such as ON-Q, Narcotics, regional and local anesthesia.
Bioflex Wearable Therapy - Featuring a pain management system. Includes informatation about chronic pain, case studies, and references.
Dr. Blair Lamb, MD - Information on all aspects of pain, including treatment of such chronic and acute conditions, and osteoarthritis, and pain therapies. Also offering products and a stretching video. Based in Ontario, Canada.
Medicinehouse - Offering news, books, products, and information on pain relief medications. Sponsored by the L.A. Pain Clinic in Hawthorne, California.
Medtronic.com - Provides resources on therapies for the treatment and management of cancer pain, back pain, and other chronic pain conditions.
Meta Description: [ Chronic pain therapies from Medtronic offer proven relief treatment alternatives. Learn more today. ]
NPR : Diminishing Pain by Distraction - News story about how and why the brain can be distracted from pain or anticipation of pain. [3:16 streaming audio broadcast]
Meta Description: [ Painkillers can be effective because they block pain signals from getting to the brain. But distracting the brain from pain is an alternative method for intervening with it, especially for anxiety-provoking medical treatments. ]
OncologyChannel - Cancer Pain Resources - Information and resources to help deal with the physical pain associated with cancer treatment. Treatment and diagnosis information as well, monitored by board-certified oncologists.
Meta Description: [ Pain is something we all experience but only those with cancer know how bad that pain is. Only recently have researchers given the pain caused by cancer any warrent. ]
Pain Assessment Resources - Behavioral medicine psychology assessment instruments for the pain practitioner and for patients, with links to specialist care providers.
Pain Management jobs - Pain Management jobs are listed at Physician Employment. You may register
to be automatically updated when new jobs are listed.
Pain Management Jobs - Physician jobs for all specialties throughout North America.
Pain Management Resources - Bedside Pain Manager - Vendor of a reference guide for healthcare providers and patients dealing with acute, chronic or terminal pain.
Meta Description: [ Bedside Pain
Manager is a comprehensive quick-reference guide for nurses, doctors,
pharmacists and patients dealing with acute, chronic or terminal
pain. Includes conversions. ]
Pain-talk - Forum for UK healthcare professionals interested in acute, chronic, or palliative pain management.
Meta Description: [ Pain-talk.co.uk The national discussion forum and community for UK Nurses, Doctors, and Allied Professionals with an interest in acute, chronic, or palliative Pain Management. ]
Painlab.com - Offers detailed information on pain research, pain medications and treatment methodologies. Contains a bulletin section for visitors to ask advice on chronic pain and other pain related topics.
Post-Operative Pain Management Quality Improvement Project - Self-directed resource for hospitals to assist in improving pain management. Includes about the project, participants, data collections, conferences, questions and answers, links, and references.
Worldwide Congress on Pain - Extensive online library of pain articles, 'ask the expert' columns, a forum, and an international directory of pain clinics, and daily news, for patients and practitioners.
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