We respond to what we expect to happen

Our complex nervous systems continually process and integrate information about the body, regulating and balancing the resources. We respond and adapt to what is happening to us or is expected to happen to us.

We do this by running simulations of information we gathered and stored from past experiences. We can feel the signals of these simulations just as intensely as the signals we get from actual injury. This can be useful as the body can kickstart the circulation of our endogenous painkillers just before the injury happens.