Experts have suggested four possible reasons for the pain-reducing
Joint n 11 Review effect of activity. The first has to do with endorphins. These are chemicals your body produces naturally during exercise, which have the same kind of effect as opiates like morphine and codeine. Endorphins actually block the perception of pain, and create a general feeling of wellness, both of which are invaluable to someone with chronic pain.
A second reason is that regular activity helps to improve both the ease with which we fall asleep, and the quality of our rest once we do. Pain, can become more or less difficult to deal with depending on our resource levels. Most sufferers experience difficulty sleeping when the pain is bad, which can prompt another downward spiral. Something that helps us sleep better, means more energy and resources, which in turn, allows us to cope better with the pain we experience.
A third is that exercise helps release tension (see Exercise & Stress for an explanation of why). Tension, stress and frustration, as any sufferer of chronic pain will attest, increase pain levels. This means that anything that helps relax the body will also usually help reduce pain levels.
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