"Toppling the Reign of Pain"
“After injury or overuse, the web of nerve endings transmits both quick (A-Delta) and slow (C-fiber) ‘nociception’: a pain signal. Instead of heading straight to the brain, we now know that pain signals are moderated in the spine, both by local inhibition at the site of pain (like rubbing a bumped elbow) and by inhibition in the spinal cord from the brain (like when you don’t notice aching knees until you quit dancing). When the balance of pain signals is greater than the local inhibition and the dampening from the brain, you hurt.”
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