Altering brain chemistry may allow people to increase pain threshold - UPI.com

MANCHESTER, England, Oct. 23 (UPI) -- Researchers at the University of Manchester found the number of opiate receptors in the brain increases to help the body combat chronic pain, which may lead to more effective methods of pain management.

Chronic pain, such as what arthritis patients live with, is pain that persists continuously for six months or more. Opioid-based medications are often prescribed for chronic pain, however their efficacy decreases over time as patients build up a tolerance to them.

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