If the neck has become hard and fixed in a wrong position, rub as recommended in Muscular Action. This treatment has cured many cases.

Nerve Centres, Failing.—Many diseases flow from this cause, but at present we only consider one. That is where a "numbness" begins to show itself in fingers and toes, and to creep up the limbs. No time should be lost in treating such a case. It arises from failure in the spinal nerves, and these must be nursed into renewed vitality. This will be greatly helped by wearing over the back next the skin a piece of new flannel. Rub (see Massage) the back with warm olive oil night and morning, working especially up and down each side of the spine. Pursue this rubbing gently but persistently, but do not fatigue the patient, which may easily be done. Cease rubbing the moment fatigue manifests itself. Continue this treatment for weeks even, and also treat, as in next articles, mind as well as body. (See Locomotor Ataxia.)

Nerve Pain.See Pain.

Nerve Shock.—After a fright, or some very trying experience, some part of the nervous system is frequently found to have given way. Heat is felt in the stomach. Then, if no treatment is given, curious feelings come on in the back of the head. Even inflammation of the stomach and brain may come on in severe cases. In any such trouble, alcoholic drinks, blisters, opium, and all narcotics are to be strictly avoided. These only lessen the already weak nerve power. Show the patient in the first place that there is no need for anxiety, the vast majority of such cases being easily curable by right treatment. We have seen this relief of mind alone effect a perfect cure. Therefore see to giving it. Wring tightly out of cold water two ply of new flannel, large enough to go round the lower part of the body, from waist downwards to hips. Put these round the patient, with two dry ply of the same flannel above them. Wear this night and day for a week or a fortnight. Keep the feet always warm and dry. Give plain, easily digested food. If St. Vitus' Dance shows itself, treat as directed under that head. Study the case in the light of all said on nervous troubles in these pages, and you will be able to cure almost any symptoms which may arise.

Nerves, Shaken.—By this we mean, not the nerve trouble which follows a sudden injury or fright, but the result of long-continued worry and overwork. Sleeplessness, great irritability of temper, depressing thoughts, restlessness, and even a wish for death, are all symptoms of this trouble. In any effort to cure it, the mind must be largely considered. Thoughts of the constant care of a loving, Divine Saviour for even the least of His children, must be encouraged. Work, which is an intolerable burden when depressing thoughts are encouraged, will become easy when these are removed. If you get the sufferer made hopeful for time and for eternity too, you have half won the battle.

Again, in bodily matters, food or drink which is exciting must be given up, or very sparingly used. Tea should only be taken weak, and at most twice a-day. Avoid long conversations, and especially discussions and debates. Let the head be soaped (see Head, Soaping) with soap lather at night, and rub all over with hot vinegar and olive oil before rising in the morning. Many a shaken nervous system will speedily recover under such treatment. Take also eight good hours for sleep, and allow no ideas of business or work to intrude upon them. No more valuable habit can be formed, by the healthy as well as by the nervous, than this. The whole will should resolutely be bent to remove the attention from every trying thought, when the hours of work are past, and especially on retiring to rest. Always recollect that this can be done; assert mentally, or if necessary, audibly, that it shall. Do not let initial failure disappoint you; persevere and a habit will be formed. When the brain gets a fair rest in its hours of leisure, it is usually equal to all demands in ordinary hours of work.

All brain workers, in their leisure hours should let the brain rest, and if they must do something, let it be as diverse from their work, and as easy on the thinking power as is possible. (See Worry).

From "Furneaux's Elementary Physiology."

Nerves, Spinal.—The spinal cord is continuous with the back part of the brain. It is a mass of nerve fibres, and from it branch off in pairs, all the way down from the brain, the great nerves which move the limbs and muscles of the body, and receive the impressions of sensation for conveyance to the brain. It is permeated by numerous blood vessels, which supply what is needed for the upkeep of the whole mass. When these relax, and become overfilled with blood, we have congestion of the spinal cord. This may often be easily remedied by cold cloths applied over the spine, with fomentations to the feet if necessary (see Children's Healthy Growth; Fall; Paralysis; St. Vitus' Dance). If, on the other hand, the vessels are contracted, or the blood supply defective, we have great languor and coldness. This usually may be remedied by rubbing over the spine with hot olive oil. Violent heat, or blistering, simply destroys the skin, and hinders healthy action. Gentle heat, or gentle cooling, long continued, is the best treatment. Especially is this true in the case of little children (see Children's Healthy Growth). For treatment of the nervous system, peculiar attention should always be paid to the point where all the spinal nerves enter and issue from the brain. This is at the hollow usually present at the base of the back of the skull, where it is jointed on to the spinal bones. Rubbing here is most powerful, either with acetic acid or olive oil, and hot or cold cloths should always be well pressed into the hollow, when applied to the head or upper spine. (See Diagram, page 234).