
What do you know about pain?
It’s quite likely that your understanding of pain is based on the model first proposed by Rene Descartes over 300 years ago. In it a painful stimulus is detected by a special pain receptor and the stimulus is carried upon a nerve to the brain where you feel pain. Descartes described them as tubes that carried the “animal spirit.” We’ve come a long way, but we still have a lot to learn.