What is an example of this in real life?

If you walk into a room and it's too cold. The low temperature will be detected by receptors such as in our skin and the nervous system will then send the information to the coordination centre such as the brain and spinal cord these interpret the information then send another set of signals to the effectors such as our muscles that can carry out the useful response like shivering. after a bit of time the shivering will increase our body temperature and we will return to normal. but if it goes too far and instead of turning to normal, we get too hot. then a different set of receptors detect the heat and send their own signals to our coordination system and then a different group of effectors to carry out their own response which is sweating then our temperature will go back to normal and if we get too cold the same thing will happen all over again.