What allows us to feel pain? is there a way to permanently dis the feeling of physical pain? if you try to bite your finger off, what stops you from doing so?

When we feel pain, such as when we touch a hot stove, sensory receptors in our skin send a message via nerve fibres to the spinal cord and brainstem and then onto the brain where the sensation of pain is registered, the information is processed and the pain is perceived.

Find a comfortable position,sitting or lying down and begin to breathe mindfully. Do a quick scan of your body from head to toe. If you feel any muscles that are tight, try to relax them. After a few minutes of this breathing, try these five techniques to see if they help relieve your physical pain.

Your jaw and teeth have enough strength for that. However, unless your mental abilities have been significantly disrupted, your brain will prevent you from doing it.

                                                        water

a colorless, transparent, odorless, tasteless liquid that forms the seas, lakes, rivers, and rain and is the basis of the fluids of living organisms.

                                                        halon  

any of a number of unreactive gaseous compounds of carbon with bromine and other halogens, used in fire extinguishers, but now known to damage the ozone layer.

                                                  dry chemical

extinguishing agent used on class a, class b, and class c fires.

                                                  carbon dioxide

a colorless, odorless gas produced by burning carbon and organic compounds and by respiration. it is naturally present in air (about 0.03 percent) and is absorbed by plants in photosynthesis.