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The brain regulates how severe or acceptable pain is, which is influenced by a number of factors such as previous experience of pain, emotions, and psychological state. It suggests that the way we experience pain can be affected not just by the physical damage, but additionally by our emotions, stress levels, and aspirations. For example, someone who anticipates pain may perceive it as more severe than it is. Feelings of pain in an individual may vary because of the brain's ability to perceive pain, even when the underlying medical condition is same. Chronic pain is frequently viewed as a physical condition, whereas in reality it is intrinsically connected to how the brain interprets and processes pain signals. Although pain may typically raise by an accident, illness, or any other medical issue, the brain may occasionally "feel" pain even after the cause has been resolved. This process is known as pain sensitization or central sensitization. It happens whenever the nervous system becomes too receptive to stimuli, which is basically "remembering" pain.


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