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The Difference Between Pain and Damage

Why pain is a protective signal, not a damage meter

4 min

Pain and damage are not the same thing. Pain science has shown that pain is a protective output of the nervous system — real, but not a precise measure of tissue injury.

Key Nuance
Sensitization is a real biological process where the nervous system becomes more reactive over time — which is why pain can remain intense even after tissue healing is largely complete, and why scans can show dramatic structural changes in people with little pain at all.
明健 Take
Pain is not a perfect damage meter. It is a protective signal shaped by the whole organism.
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