
It is not a secret that the process of learning lasts during the whole human life. This process can have different names, such as studying, learning, training, but the final goal of all those processes is getting new life experience. We usually start with the experience of walking and eating without parents' help, then writing and reading, later doing some work and earning money.
But there is one more experience, which is vitally important for people. It is the experience of taking care of ourselves and maintaining our health. There is a saying that people learn on their own mistakes. Speaking about health, the truth of this saying can be easily illustrated with pain as the internal signal, informing us about the mistaken action and warning us not to do that again.
A small boy usually ignores all the parents warnings not to play with matches or a knife until he burns or cuts his finger. It is a pity, but this scenario of getting life experience is not limited by childhood. For example, we continue to abuse smoking and alcohol until the body signals us with a help of pain about a serious disease.
However, pain is a very unpleasant sensation and there are not so many people, getting a satisfaction from experiencing it. That is why, one should better learn on other peoples mistakes to avoid experiencing pain by himself.
So, physical pain in medicine is categorized into two main types and each type of pain has its own causes or stimuli, as they are called by doctors.
1) Nociceptive pain in spite of rather weird and unfamiliar name, this pain has rather usual causes: - mechanical damaging of tissues (cuts, bone breaks, pinches and dislocation of joints) - thermal damages (burns or frostbites, due to the influence of extremely hot or cold temperatures) - electrical (burns, due to the influence of electricity) - chemical (chemical burns due to the influence of certain chemical substances, acids etc.)
The causes of nociceptive pain can be easily diagnosed, so it can be relieved and treated rather easily with usual pain relievers or analgesics. It is usually a temporary condition, which passes with wound healing, though, it can sometimes be chronic and accompanies such disease as arthritis.
2) Neuropathic pain this pain appears in response to direct damaging of the human nervous system or its dysfunction. It can be caused by spinal cord traumas, compressing of nerve endings or damages of central or peripheral nervous tissue in result of radiation, surgery or chemotherapy.

Neurophatic pain is a very serious condition that usually does not respond effectively on usual pain relieving medications and requires more serious medical and diagnosis and treatment.
So, now you are certainly aware of things to avoid in order not to experience pain. But this list of pain reasons does not contain all possible factors, which may lead to painful sensations.
Therefore, before getting a new experience, such as going in for a new kind of sport, working with a new mechanism, trying a new medication or learning a new Kamasutra position, please, study all the safety information provided and the experience of other people in order to minimize the potential of pain feeling. Nick
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