"PAIN"

The pain is a part of the body from the system of defense, what triggers mental and physical behavior to end the painful experience. It promotes the learning process so that a repetition of the painful situation is less likely.

Despite the inconvenience, the pain is an important part of the existence of humans and other animals, in fact, it is important for healthy to survive (see below insensitivity of the pain). Pain promotes the organization, from the suggestion harmful to the pain. Before the pain can indicate that the damage is imminent, such as pain, which soon became the bones broken. Pain May the process of healing, as most organizations to protect an injured area to avoid a new pain.

Interestingly, the brain tissue itself is without nociception, and therefore can not feel the pain. Thus, headache is not through the promotion of the pain fibers in the brain itself. On the contrary, the membrane surrounding the brain and spinal cord, called the durra mater, innerve receptors is the pain and the promotion of these Nozizeptoren nachschneiden, believed to be involved to some extent in the production of the pain of a headache. The vasoconstriction of the pain innerve blood vessels in the head, is another question. Some biologists have speculated the development that this lack of nociception in the brain tissue may be because the damage is far enough to chat; the pain in the brain has a fairly high probability that the fatal tissue nociception development would have little or no entitlement to a survivor's pension.

The chronic pain, in which the pain is pathological as well, May be an exception to the idea that the pain is to survive, although some experts believe that the chronic pain psycho gene, as a distraction of protection to keep dangerous feelings suppressed anger or rage as unconscious. It is not clear what the survival of some of the benefits that extreme forms of pain therapy (Tooth Ache for example) could be, and the intensity of certain forms of pain (for example, after injuries to the toes or nails) are not compatible with all benefits to survivors.