An asset not generally recognized in normal occlusion of a natural set of teeth is the ability of the patient to relax practically every part of the body through firm, biting pressure for two or three minutes on all surfaces of the upper and lower teeth. In this manner pain may frequently be relieved in any section of a zone, or group of zones, throughout the body, and occasionally even anesthesia may be induced through firm occlusion of the teeth for two or three minutes in these zones. This is at least one reason why all the teeth should be preserved, if at all possible, and why normal occlusion should be brought about if it does not already exist. If one be deprived of the third molar teeth, for instance, his ability to prevent, relieve or overcome pathological conditions in the fourth and fifth zones is restricted; and this naturally applies to the various individual zones or group of zones where teeth have been extracted. You would hardly believe that offending corns or warts or bitten finger-nails, where inflammatory processes have been excited, may be responsible for rheumatism or neuritis, but we are daily proving such to be the case. Toe-nails and finger-nails must be respected and as well taken care of, for health’s sake, as any other section of the individual zones. There is not a section of a finger-nail or toe-nail that may not affect (under stimulation or pressure) the most distant parts of the body. Also, it might be of interest here to note that while enough pressure is good, too much is mild murder. This can be testified to by all who, by means of new shoes, foolishly apply constricting pressures to their toes. There ensues, after the lapse of an appreciable length of time, a condition made up of equal parts of bodily weakness and nervous irritability--an actual physical and spiritual fatigue--relieved only by removing the pressure--in other words, by relieving zone pressure inhibition. Tight belts, corsets, or collars will develop similar, or even worse, effects, inasmuch as their influence embraces not only the undue irritation of the nerve zones, but also the constricting influences upon glands, blood vessels and internal organs. All zones must be free from irritation and obstructions to get the best results. For instance, if there be pain in the head, chest, abdomen, or extremities in one or more zones, it may be relieved or quite overcome by pressure on resistant surfaces anywhere in the zones affected. If the pain be relieved for a few moments only, and repeated pressures do not overcome it, it is safe to assume that the pain is due to some abnormal pressure or irritation, as gas, pus, impactions, necrosis, etc., somewhere in a zone or group of zones, which demands medical or surgical interference.