Arthritis is a condition that is characterized by pain. How does Arthritis cause pain, and why? To understand the answer to the question of how does Arthritis cause pain, it is necessary to review the purpose of pain. Pain is a function of the human nervous system and it serves a definite purpose. When something is wrong and harm is being done to the body in most anyway, chemicals are produced at the site of the disturbance. These chemicals cause a signal to be sent through the nervous system to the brain. The brain translates this signal into the sensation of pain.
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