Last week we described pain sensors. For people with chronic pain, the good news is that the life of these sensors is short - a few days, before getting replaced.
This means that our sensitivity keeps changing. The sensor mix is usually balanced, but can quickly change, depending on the brain’s decision. The rate of production of the sensors can change too - more hope for persistent pain sufferers!
So we have pain sensors, who respond to different stimuli and sometimes activate neurons. These special neurons may send a prioritized signal to the spinal cord and then to the brain. This is called nociception - or danger reception.
Nociception is neither sufficient or required for pain. Remember that thoughts of unpleasant events alone can trigger pain, bypassing our physical pain sensors.