The power of mind over body for the relief of symptoms has been recognized, not only by physicians, but by the generality of men at all times. Every one has had experiences of aches, or actual pains, or discomfort quite annoying while one is alone, but that disappear while in pleasant company or occupied in some absorbing occupation. Many a headache that was painful enough to disturb us seriously while we tried to apply ourselves to something of little interest, and became almost unbearable if we tried to do something disagreeable, and actually intolerable if the occupation of the moment was a drudgery, disappeared, at least for the time, when we turned to a pleasant game of cards or indulged in some other favorite pastime. Our relief was not, however, from an imaginary ill, for the symptoms usually reasserted themselves when we got through with the pleasant occupation, showing that they have been there all the time and that we have only turned our mind away from them, and hence have ceased to feel them. This is so familiar it seems almost too commonplace to repeat, yet it constitutes the special phenomenon that lies at the base of psychotherapeutics, or the mental healing of physical ills.
It is not alone the slighter, more or less negligible aches or pains, nor the vague discomforts that thus disappear when our attention is occupied, but even quite severe and otherwise unbearable pain may be modified to a great extent. A toothache that is bearable, though it nags at us constantly and never lets us forget its presence while we are occupied with many other things during the evening, may become a positive torture when we get to bed. This is not only because of physical conditions modifying the pain, for there seems no doubt that the warmth induced by the preliminaries for sleep and the bed-covering have a tendency to increase congestion, but it is mainly because as we doze off we are able, less and less, to inhibit our attention, or divert it from the pain that is present, and so this is emphasized until we have to do something for it or lose hours of sleep. This lack of inhibition, which characterizes the dozing hours, represents the state of mind in which people are who have no interest in their occupations, and who have ceased to find recreation in the ordinary pleasures of life, when pain of any kind comes to them.
Cabanis, at the beginning of the nineteenth century, under the title of "The Influence of the Moral on the Physical," discusses what we would now call mental influence on the body. He says:
The great influence of what one may call the moral or mental on what may be called the physical is an incontestible fact. Examples without end confirm it every day. Every man capable of making observations finds proofs of it thousands of times in himself. Many physiologists and psychologists as well as moralists, have collected the evidence that brings out clearly this power of the intellectual operations and emotions on the different organs and the diverse functions of the living body. All of us could add new illustrations to these collections. Men who are rude and credulous talk of the effect of the imagination, and if they are not themselves its playthings and its victims, at least they know how to observe its effects In others.
As a matter of fact, the action of our organs can be in turn excited, suspended, or totally inhibited, according to the state of mind, the change of ideas, the affections and the emotions.
A vigorous, healthy man has just made a good meal. In the midst of the feeling of satisfaction which diffuses itself over all his body, his food is digested with energy and without any bother. The digestive juices perform their work steadily and without causing any annoyance. But let such a man receive some bad news; let some sudden emotion come to excite him, and especially to shock him into profound sadness, and at once his stomach and intestines cease to act upon the food which they inclose, or they at best perform their functions badly. The digestive juices, by which the food materials were gradually being dissolved, are suddenly stricken with inactivity. What might seem to be a stupor comes over the digestive tract, and while the nervous influence which determines digestion ceases entirely, that which tends to bring about the expulsion of material from the digestive tract may become more active and all the material contained in the digestive viscera may, in a short time, be expelled.
Relief in Severe Injuries.—Even extremely severe injuries, which inflict serious organic lesions that ordinarily would produce shock and collapse, quite apart from the pain induced, may at moments of excitement pass unnoticed. A soldier often does not know that he is wounded until the flow of blood calls his attention to it, or perhaps a friend points it out to him, or loss of blood causes him to faint. The prostrating effects of even fatal wounds may thus be overcome for a considerable time in the excitement of battle, or because of a supreme occupation by a surpassing sense of duty. There is the well-known story of the young corporal detailed to make a report to Napoleon at a very important crisis of one of his great battles, who made the report with such minute accuracy that it called forth a compliment from Bonaparte, for it involved a very special exercise of memory for details, yet who was actually on the verge of death when he delivered the message. As his duty was accomplished the Emperor, noticing his extreme pallor, said: "But you are wounded, my lad." The young soldier replied, as if, now that duty was done, the consciousness of his wound had just come to him, "No, Sire, I am killed," dropping dead at the Emperor's feet as he uttered the words.
In all of the great theater fires examples of this kind are recorded. A woman who barely escaped with her life from a theater fire some years ago had an ear torn off, very probably by some one grasping it in the crowd. She knew nothing of this until it was called to her attention after she got out of the theater, and then she promptly fainted from the pain and shock. Under such circumstances men walk with broken legs or limp even with dislocations, utterly unconscious that anything serious has happened to them. Men have been known to be unaware of a broken bone or even more serious conditions, ordinarily quite painful and disabling, while laboring to help others in an accident.
Suppression of Reaction.—This side of the influence of the mind on the body is so interesting that its effects have often been noted and studied. While we do not quite understand the mechanism by which it accomplishes its marvels of anesthesia and even of motility under apparently impossible conditions, there is no doubt that severe pain may utterly fail to reach the consciousness, though the nervous system is uninterruptedly carrying the messages just as it did before. The lack of attention suppresses the ordinary effect upon the personality. Evidently the messages originate and are carried to the nerve centers, but find no attention available for them, and so pass unnoticed. The study of phases of this phenomenon of suppression of reaction forms a good basis for the use of mental influence, and shows its marvelous power to overcome disturbing physical factors.
Amputation Stump Aches.—An interesting example of the influence of mind over body, when circumstances favor its exercise or emphasize it, and at the same time a striking illustration of the potency of suggestion in the cure of discomfort, is found in the stories that are so common of cases of pains in amputation stumps. Any number of weird tales are told of men who complain of feeling cramps in the toes of an amputated limb after this portion of their body had been buried. The discomfort is common enough. In the special stories, however, the limbs have been dug up, the toes straightened out—according to the story, they were always found cramped in some way—and then the patient is at once restored to ease. In the good old times they probably believed in some direct connection between the straightening out of the toes of the amputated member and subsequent relief of pain. For us it is but an example of the power of suggestion. It is not the sort of suggestion that one likes to think of employing, though it has a certain dramatic quality which adds efficiency to suggestion.
The Mind and Motility.—We have spoken thus far almost exclusively of painful conditions as relieved by suggestion or mental influence, but disturbance of motor function may also be favorably affected. There are any number of cases on record in which patients who had been utterly unable to walk were restored to motility by a shock. Many such patients have, in the midst of the excitement of a fire, or the scare caused by the presence of a burglar, got up and walked quite as well as ever, though sometimes they have been for years previously confined to bed. The San Francisco earthquake is said to have exerted such an effect on a number of patients, and, while such unusual disturbances cannot often be provided for the cure of these ailments, there can be no doubt at all of the power of a shock to the mind to overcome functional incapacity that has resisted every possible form of treatment.
Ailments of this kind, which involve inability of the will to control, or rather to initiate, movements of the body, receive their best explanation on the neuron or neuroglia theory. (See the chapter on the Mechanism of Suggestion.) The central neurons become either quite separated from certain of the peripheral neurons, or at least the connections are not made with that nice adjustment necessary for the proper passage of nerve impulses. The shock communicated to the nervous system by fright is sufficient, however, to restore these connections, and consequently to enable the patient once more to exercise motor functions that have been in abeyance for some time.
Astasia-abasia. —Any one who has had to deal with the cases for which the French have invented the rather impressive Greek name of astasia-abasia—how much better it would be to call the condition simply what we know it to be, nervous inability to stand or walk!—appreciates how almost a miracle is needed to improve them. The incapacity for station or movement to which the disease owes its name is so complete in many cases, and the patients' lack of confidence in self so absolute, that no ordinary remedial measure is capable of doing any good. These cases are usually a severe trial to the patients' friends. Indeed, the patients themselves maintain their nutrition so well and, as a rule, enjoy such good health, or, as has been said, enjoy their bad health so well, that it is for their attendants the physician feels most commiseration. Yet generally he is quite unable to do anything. It is certain, however, that with care and authoritative suggestion there would not need to be an earthquake, or a fire, or even a burglary, as a therapeutic measure in these cases. As a matter of fact, their cure when it occurs is always brought about by some strong mental influence.
Mental Influence on Organs.—The Heart.—The influence of mind can be noted on practically every organ of the body in a concrete way. It might be thought that the heart, the first living thing in the animal being, the pulsations of which begin before there is any sign of the nervous system, might be free from this influence. On the contrary, the heart is so readily affected by mental states that, taking effect for cause, the old popular, and even scientific idea with regard to it, was that it was the organ of the emotions. The heart is stimulated more by favoring circumstances, and suffers more from depression, than almost any other organ. In the melancholic states it usually beats less frequently and is sluggish. When individuals are tired out and the heart has become weakened in its action, new courage will first be noted as having its effect upon the heart action. As the whole muscular system is much influenced by the mental state and, as the control of the arterial system depends on the muscles in the arteries, it is easy to understand how much the general bodily condition may by mental influence be modified for good and ill.
Digestive Tract .—The stomach and intestines, though their functions might be presumed to be dependent entirely on physical conditions, are almost completely under the control of the mental state. At moments of depression, just after bad news has been received, the appetite is absent, or is very slight and digestion itself proceeds slowly and unsatisfactorily. On the other hand, when there is mental good feeling appetite is vigorous and digestion is usually quite capable of disposing of all that is eaten. If after a period of rejoicing in the midst of which food is taken abundantly bad news is brought, the mental influence on digestion can be seen very well. It is not alone that depression interferes with digestive processes, but apparently some favorable factors for digestion consequent upon the previous state of mind are withdrawn, and now what would have been a proper amount of food proves to be an excess and the digestive organs find it difficult to deal with it.
Nervous Inhibition.—The mind can actually inhibit certain of the involuntary processes of the body by thinking about them, and, above all, by dwelling on the thought that they are going wrong. This becomes easier to understand when we recall how, in the same way, we may disturb many habitual and more or less unconscious actions that we have grown accustomed to. There are any number of actions requiring careful attention to details which become so habitual that we do not have to think of them at all. Not infrequently it happens when we try to explain to others how we do them, we disturb the facility of performance and have to repeat the acts several times before we succeed in performing successfully what a moment before we did without any thought. The story of the centipede who was asked how he walked with all his hundred legs, and who tried to describe how easy it was and got so mixed up that he was unable to move at all, is a whimsical symbol of conscious attention disturbing actions which go on quite well of themselves if only we do not allow ourselves to think consciously of each and every phase of them.
How much the mind may influence the body under certain conditions when trance-like states either assert themselves or are brought on, has often been noted. Lombroso in his book "After Death What?"10 says of Eusapia Paladino the "medium," that "when she is about to enter the trance state the frequency of the respiratory movements is lessened just as is the case with the Indian fakirs. Before the trance she will have been breathing eighteen to twenty times a minute; as the trance begins the number of respirations is gradually reduced to fifteen; when the trance is fully developed she breathes twelve times a minute or less. On the other hand, at the same time the heart beats increase. Normally her pulse is about seventy, but during the early trance stage it rises to ninety, while during the course of a deep trance, it may go as high even as one hundred and twenty. The passing from a more or less rigid state to that of active somnambulism is marked by yawns and sobs and spontaneous perspiration on the forehead." The observation of these phenomena is, of course, entirely apart from any theory one may hold with regard to mediumistic manifestations, and it provides evidence of mental influence that is very striking.
Imaginary Drug Effects.
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