Why do people feel pain

When the body is injured, the receptors all over the skin, tissues and organs transmit the injury information to the body’s ruling organ-the brain through nerve fibers. When the brain receives this information, people will feel the corresponding pain. It is painful to remind people: There is danger here, avoid it in time!

In the nerve channel, the transmission speed of information is very fast, the maximum speed can reach 120 meters per second, which is equivalent to the speed of a train. Therefore, the human body can hardly notice the time difference of signal transmission. When we are struck by a needle, our tingling pain The reaction to shrinking hands occurred almost simultaneously.

The receptors and brains of different people have subtle differences in the recognition of pain, so although sometimes we encounter the same “stimulus”, the pain we feel may not be exactly the same. In fact, the pain caused by the injection and the pain caused by the strong applause are in the same pain range, but many times we still feel that the injection is more painful. This is because fear and anxiety will amplify the pain.

Therefore, when our body has pain, don’t be afraid, don’t panic, and face it calmly. This will not only relieve our pain to a certain extent, but also better help doctors diagnose our illness or injury.

Not all pain is caused by physical injury. Neuropathic pain is a kind of non-injury pain. It is caused by errors or disorders in the nervous system inside the body. Some people suffer from pain, but there is no injury on their body, so what he encountered may be neuralgia.

Trigeminal neuralgia and post-herpetic neuralgia are the two most painful diseases in the world, and most of neuropathic pain is chronic pain, that is, the pain lasts for a long time, and it is difficult to heal in a short period of time, and long-term treatment is needed to relieve it.

In addition to neuropathic pain, psychological pain is also a non-injury pain, but it is more complicated than neuropathic pain. When a person’s psychology encounters huge ups and downs or bears excessive pressure, even if the body is very healthy, there is no problem with the nervous system, and some people still experience huge pain.

Pain is a personal feeling. When you encounter pain, how can others feel your pain firsthand? Scientists have designed some tools to help humans understand the level of pain, such as visual analog scales, facial expression scales, digital rating scales, etc. Through these pain assessment tools, doctors and nurses can take appropriate treatment and care for patients suffering from chronic pain or pain after surgery. For example, doctors will give them corresponding levels of analgesics for their pain perception.