Pain and Energy

It is explained how pain arises, how it is transmitted to the central nervous system, and finally where it arrives in the brain. In addition to acid, heat, and cold, inflammatory situations cause pain. The immune messenger substances can directly activate the pain receptors. The face, tongue, throat, hands, and feet are most densely supplied with pain nerve fibers. There, an inflammatory situation can be particularly well recognized (“sixth sense”). Acute and chronic pain are distinguished; the latter are associated with a kind of stabilization of the pain process. Pain causes significantly increased energy expenditure.