People feel pain as a result of nerve cells sending messages to the brain for interpretation. It is typically the result of tissue damage and allows the body to react and avoid harm. There are several ways to feel and express pain, and each person's experience of it is different. Because of this variation, it may occasionally be challenging to define and treat pain. Anywhere on the body can experience pain, whether it is permanent or transient, localized or generalized. People feel pain when particular nerves called nociceptors find tissue damage and communicate that information to the brain via the spinal cord. For example, contacting a warm surface will cause a reflex arc in the spinal cord, resulting in an instantaneous contraction of the muscles.
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