The sign of death is the absence of signs of life. Pain is one of the signs of life. To make sure that the organism is rather alive than dead, you can check whether there is a reaction to external stimuli, whether the organism can perceive pain. If the organism does not perceive pain, it means that one sign of life has been lost, and the organism is more dead than alive. The organism uses pain as an indicator of problems, a signal that it needs attention. If you turn off this alarm, the organism cannot heal itself. Medicines can help, but the organism must heal itself. The organism must be able to recognize the threat on time and eliminate it. The condition of the organism in which the immune system does not respond to a threat is called tolerance. If the organism does not respond to medications, this is also called tolerance. If the pain is not severe, then one can endure, if the organism is not strong enough and cannot stand the pain, then one resorts to using pain relievers. Some p