Mental diseases--so-called--usually depend upon disturbance of the blood-supply to the brain, controlled by the Cervical sympathetic. Adjustments, relieving the pressure on the sympathetic ganglia or cord and perhaps the direct impingement from the vertebral arteries, restore a normal circulation to the brain. The time required by Nature to effect a cure depends upon the rapidity with which the impingement is removed and the amount and character of the damage to brain tissue which must be repaired. The cure often requires time for a change of materials in brain cells or fibre tracts, by which they are reconstructed and again become capable of expressing normal function. Cure of Dietetic Disease When the subluxation is corrected, or partially so, the appetite changes and the craving for food becomes more normal. Adjustments may lessen a voracious appetite, increase a too capricious one, or abolish a perverted. At the same time the stomach is enabled to digest its contents more properly, the intestines to take it up and continue it, and the tissues to assimilate that which is brought to them. The body eliminates its waste with less effort and in some extreme cases the first effect of the adjustment may be to cause vomiting and diarrhea and thus purge the alimentary tract of materials which have become unusable. If injurious diet be persisted in the effects of the adjustments will be partly counteracted, the tendency of the poisons generated within the body being to increase subluxation while the tendency of the adjustments is to correct them. Cure of Poisoning Cases In acute poisoning by way of the alimentary canal and sometimes when poison has been injected hypodermically, the body rids itself of the menace to its integrity by means of vomiting, diarrhea, and increased secretion of urine. Chronic cases tend rather toward the gradual absorption and removal from the body of the poisons and their cure depends upon the cessation of the poisoning; i. e., it is useless to try to cure a morphine case while the patient is still using the drug. In acute poisoning the muscular contraction often increases subluxation and counteracts the effect of the adjustments, so that it becomes necessary to give very frequent adjustments until relief is had. Cure of Exposure Disease After the acute irritation of nerves arising from the exposure and causing irritation has been removed, perhaps by the first adjustment, if the exposure is not repeated the body heals itself with great rapidity, repairing with comparative ease the damage done. Cure of Bodily Excess Disease