Pain, everything you didn"t know

Few people agree to tolerate pain, and immediately hurry to take an anesthetic. Do I need? Oddly enough it may seem at first glance - no need! Because you first need to find out the source and cause of pain, try to remove this reason, and already you can also make it possible to also be painful if it has not passed as a result of treatment.
What is pain from the point of view of physiology and psychology, how does it occur, how does it apply? It can be hurt in one place for various reasons - how to at least roughly determine what hurts and why? Is it possible to drink pills whenever it sits, and will they help any pain? What are the side effects, do they have allergies and what to do in this case? Is it possible to reduce pain without drugs? Are there such & quot, magic & quot, food? How did our ancestors figured the pain?
A lot of questions, and the answers are devoted to them