There are two forms of mouth-danger that should be clearly differentiated. Dental caries, or decay, is at first largely a chemical process and affects the tooth proper. Pyorrhea, or Riggs’s disease, affects the tissues surrounding the root of the tooth, and is accompanied with infection by pus bacteria, and possibly also by animal parasites, termed endameba. Scrupulous cleanliness of the mouth largely prevents both of these maladies.
In caries, or dental decay, plaques or films of mucin from the saliva form on the tooth-surfaces and enclose bacteria and particles of carbohydrate food, which undergo fermentation with the formation of lactic acid, which dissolves the lime salts on the surface of the teeth, leaving only the organic matter. This organic matter is then attacked by bacteria. Putrefaction sets in, and you have a cavity. This cavity is, of course, a menace, as it harbors various forms of bacteria, which may infect the general system through the root canals, or the digestive system by being swallowed with the food, and also gives rise to abscesses at the root-tips.
Pyorrhea is an infection of the gums or tooth-sockets. It begins beneath the edges of the gums that have been injured and especially where there has been an accumulation of tartar or lime-deposit. As the infection progresses and destroys the membranes that attach the root of the tooth to the socket, a pocket is formed around the root, and the tooth becomes loosened. It is said that this disease is responsible for far more loss of teeth than is decay.
But this is not the only evil. In the pocket pus is continually being formed and discharged into the mouth and swallowed. Also, as the teeth rise and fall in their diseased sockets in ordinary chewing, bacteria are forced into the circulation and may be carried to distant parts, where they work harm according to their nature, selecting tissues for their operation in which they can best thrive.
It was formerly supposed that the ill effects from such conditions as dental abscess and other pus foci were wholly due to the toxins or poisonous products thrown into the blood-stream by the bacteria at the focus. It is now known, however, that the bacteria migrate into outside tissues through the blood- and lymph-streams. In joint affections, they clog and obstruct the small blood-vessels, interfering with the nutrition of the joint-tissues, causing deformity and enlargement, as in arthritis deformans, as well as in acute inflammation, such as rheumatic fever. Indeed, this condition of subinfection, or “focal infection,” is coming to be recognized as a far more important cause of disease than the time-honored autointoxication, a term which has been greatly abused and misused.
The term “autointoxication” should properly be restricted to conditions where poison arises from changes in the tissues or in the activities of cells or organs, whereby substances are released into the circulation in quantities harmful to the organism; in other words, where the secretions of the body are altered, either in character or quantity, to such a degree as to cause injurious effects, such as overactivity or underactivity of the thyroid gland, or suprarenal gland.
The poison from undigested food, or from decomposing intestinal contents, should be termed “intestinal intoxication,” or “toxæmia,” rather than “autointoxication,” or “self-poisoning,” as it is actually due to infection from outside sources. Intestinal toxemia is, no doubt, a fairly frequent cause of illness, but it has lately been shown that stagnant bowels may cause true infection by micro-organisms that penetrate the tissues, and that many conditions ascribed to intestinal stagnation and the resultant chemical poisoning may actually be due to focal infection, or subinfection, arising in other regions.
The light that has lately been thrown on chronic sources of focal infection has cleared up many of the mysteries surrounding the causation of certain obscure affections—chronic rheumatism, arthritis deformans, certain forms of anemia, goitre, chronic heart and kidney troubles, diabetes, ulcer of the stomach, duodenum, etc., and other forms of chronic disease, especially those that have proved resistant to known methods of treatment.
There are many cases where the so-called focus has apparently become established because of general bodily neglect and a general lowering of resistance, in which the focus, even though it be the mouth, has participated, and permitted the successful activities of germs or parasites. After the focus has been established, however, it is often an important and may be a deciding factor in keeping up the general diseased condition of the body.
This principle of focal infection, well established as it is, should not be accepted too literally, or given too wide an application, but no one can question the importance of preventing the bacterial hosts of the mouth from getting into the system, or the importance of getting them out, if we have unwarily permitted them to enter.
All the ills that flesh is heir to are not caused by mouth-infection, but enough of them are to more than justify a vigorous and world-wide campaign for the better care of the teeth and for a thorough search for mouth-infection in every case of obscure disease.
Gum infection is not always due to conscious neglect. Some people do not know how to properly cleanse the teeth. Others have tissues of low resistance, and need to give extra care to tooth- and gum-cleansing under the closest dental supervision. Others have spent large sums for dental work that has filled the mouth with crowns and bridges difficult to keep aseptic or surgically clean. There are various means which the individual can use to prevent or cure these dental evils.
First, the importance of thorough attention to general personal hygiene, in order that a general resistance to mouth-infection may be built up, can not be overemphasized.
The cultivation of normal eating habits with respect to the vigorous use of the jaws by thorough mastication, and the eating of hard, resistant, crusty foods every day is the next desirable means of tooth and gum hygiene.
A leading dentist expresses the hope that some day the human animal, like other animals, will, through a correct diet, be able to get along without the aid of the tooth-brush; but he adds that, in the meantime, we need to advocate more tooth-, gum- and tongue-cleaning rather than less. They should be cleaned night and morning and after each meal if possible by rapid rotary brushing. Strong pressure is not advisable. Rapidity of movement is the important point. This stimulates the circulation and increases the resistance of the gums and cleanses the teeth at the gum margins from the accumulations of tartar which are at first soft and easily removable by a brush.
A brush should be used with bristles that are stiff and of different lengths, so that the innermost crevices of the teeth may be reached. If the gums are sensitive, a moderately stiff brush can be used until the gums can bear the more vigorous treatment.
The tongue should also be carefully cleansed with the tooth-brush. By taking care not to hit the roof of the mouth, gagging is avoided.
Tooth-powders and -pastes may be used, but should not be the main reliance. Perhaps once a day for their use is often enough. Some powders, if used too freely, are liable to unduly thin the enamel of the teeth.
The use of dental floss silk between the teeth, provided care is taken not to press it against the gums, is also helpful.
A number of investigators have reported the presence of an animal parasite, the endameba buccalis, in all cases of pyorrhea, and it is thought that this parasite may be one of the principal causes of this disease. Emetin, the active principle of ipecac, which has been successfully used in amebic dysentery, is now employed in the treatment of this trouble. Such a remedy should only be used in connection with thorough surgical treatment and dental prophylaxis. It is claimed that in the early stages of pyorrhea a mouth-wash composed of two drops of fluid extract of ipecac to a half-glass of water is very serviceable, and as at that stage a mouth-wash is entirely harmless, it should be tried, especially as it is now claimed that some degree of pyorrhea or of endamebic infection is almost universally present.
For an alkaline dentifrice, there is nothing better than lime-water, made from coarse, unslaked lime. Alkaline washes are very superficial in their action, however, while fruit acids curdle and thus render removable the mucin plaques and prevent the formation of tartar. They also cleanse the tongue and membranes of the mouth generally, which may be important sources of infection. These acids are found in grape-juice, orange-juice, apples, and vinegar. Such mechanical cleansing is particularly important before retiring, as it is usually during the night that the most damage is wrought.
The advice of the dentist should be sought as to the condition of the teeth, especially as to whether there is any erosion or destruction of enamel, before using either acid or alkaline washes exclusively.
Periodic examinations and cleanings by the dentist are the only safe measures. If the dentist has facilities for giving preventive treatment by specially cleaning the teeth, he should be visited every other month. If such a program is adopted, it will generally be found unnecessary to visit him for any other purpose.
Some dentists and physicians have until lately given too much attention to the saving of teeth, without fully realizing the dangers of infection from the mechanical devices employed. The teeth should not be extracted on mere suspicion and without proper effort to save them, but it is far more important to save a heart or a kidney or a set of joints than it is to save a tooth. This is not to say that all bridge- and crown-work is improper, but that such work should only be of a character that will permit of surgical cleanliness in the mouth, and that such teeth should always be examined by the X-Ray, when there is evidence of systemic disease in order to be sure that the roots and sockets are not infected.
In early life the jaws should be carefully examined by both dentist and doctor in order to determine whether or not the proper development is taking place. If upper and lower teeth fail to fit well together, extra strain is placed upon certain teeth and the sockets are liable to injury and infection. Faulty development can often be corrected and deformities that interfere with proper mastication and place a strain on certain teeth can thus be avoided.
The temporary teeth should not be allowed to be removed by decay. Thorough dental and home care should prevent this. If cavities form, they should be filled under proper precautions and the teeth should be saved until the last minute, unless they are causing infection.
Amazingly good results from teeth-hygiene have been shown in a Boston asylum, which cares for over 300 children. Before the introduction of a dental clinic into this asylum, infectious diseases—diphtheria, mumps, scarlet fever, pneumonia, measles, whooping cough, tonsillitis, chicken-pox, croup, etc.—had been occurring for four years at the rate of over 80 cases per year, but for three years after the dental clinic was established the average was only 3 per year.
In order to live a hygienic life it is not only necessary, as shown in the foregoing three chapters, to supply the body with wholesome substances and to exclude unwholesome substances, but it is also necessary that the body should at times act, and at other times be inactive. There are two great forms of activity, work and play; and two great forms of inactivity, rest and sleep. All four of these are needed in the healthy life and in due relation to each other.
The whole personality should be utilized and energized in a daily rhythm. When, as too often happens, the equilibrium and mutual proportions of the various wholesome elements in a well-rounded life have been lost, the balance should be restored if possible the next day. If a physician has had his sleep broken, he should aim to make it up at the earliest opportunity. If the afternoon exercise has had to be omitted, an extra amount should be taken as soon as possible. Some people find that while it is difficult to live a complete life every single day, it is quite within their power to give every element its due proportion in each week, taken as a whole. To go a step farther, when the balance has not been kept even in a week as a whole, the next week should be modified to compensate. But it is ideal to make the day, not the week, the unit. It is almost as absurd to relegate all our exercise to Saturday afternoon as to do all our eating on Sunday.
It is distinctly unhealthful either to overdo or to underdo work, play, rest, or sleep. “Moderation in all things” is a rule that is particularly important in this realm. Not all people are in need of exercise, nor are all in need of rest; but almost every one needs to change his proportion between the two. To-day many people are suffering from too much or too little work. For instance, the increase in diseases of the heart is often due to nervous overstrain combined with either too much or too little physical exertion.
The remedy for the evils of idleness is obviously to find some useful work which will inspire real interest and enthusiasm. There are few things more necessary to a normal healthy life than to have purposeful work. A great dream or ambition in life often obviates personal ailments and nullifies their potency. Work, when done with zest, is a wonderful tonic. Exertion of any kind is usually pleasurable at first, and becomes drudgery only when too far protracted.
Normal work is one of the greatest blessings of life, but too many miss the joy of it, some because their work has gone to the extreme of drudgery and others because it has shrunk into nothingness and futility. Sometimes people become ill because their personality, hungry for work, is given nothing but introspection to feed upon. This is the self-imposed curse of the idle rich.
Methods of preventing or correcting overstrain vary greatly, according to the kinds of overstrain. In general, overstrain of any kind tends to overfatigue. Overstrain is to be avoided, therefore, by paying heed to Nature’s fatigue-signals as soon as they appear. A very moderate degree of fatigue is perhaps normal, but anything that approaches exhaustion should be avoided with the utmost care.
Working hours should be so arranged as to enable the worker to fully recuperate overnight, partly from sleep and partly from the recreation enjoyed in leisure between work and sleep.
Variety of work is especially needed in modern times, when specialization tends to lead men to extremes. Changes in work which prevent a sense of monotony will greatly increase the power to work. A clerk will do more work, and do it more effectively, if he is occasionally allowed something else to do than to foot up columns.
If the monotonous strain of performing numerical additions is interrupted a few times daily, the adding faculty of the brain is given much needed rest. Many men in the higher rank of workers complain of the many interruptions which they suffer, but if they would welcome these interruptions instead of allowing themselves to be irritated by them, each interruption would serve the purpose of a vacation. It is in this way that some of the greatest workers, like Gladstone, have been enabled to accomplish so much.
The strain of modern life is sometimes special rather than general. Often the strain comes on some one muscle or organ. Modern industry is so constituted that the individual strains one part of the body while other parts are in need of exercise.
One of the organs which is most commonly strained in modern life is the eye. In its modern use, the eye is constantly focusing at a short distance. To look at the horizon is a rest. The reflex evils from eye-strain are great and numerous and are often incorrectly ascribed to entirely different causes. Headaches, nausea, and dizziness are especially frequent results of eye-strain. Probably some of the breakdowns in middle life are due primarily to the reflex effect of eye-strain.
Eye-strain is to be prevented by scientifically adapted spectacles, by care to secure the right kind of illumination, and in some cases by systematically resting the eyes. Reading on moving trains or looking for a long time at moving pictures may overstrain the eye. One should be especially careful not to read in a waning light or, on the other hand, to read in the glare of the sun. If one works facing a window, it is advisable to wear an eye-shade; otherwise there is a struggle between the tendency of the bright light to close the pupil and the tendency of the work requirement to keep it open.
To offset the evils of a sedentary life, it is advisable to spend one hour daily, or at least 15 minutes, in some kind of vigorous physical exercises.
The rowing-machine is probably the most beneficial form of mechanical home exercise that is likely to be followed faithfully. Simple stretching in bed when one wakes up is helpful, especially if combined with breathing exercises.
The most beneficial exercise, as a rule, is that which stimulates the heart and lungs, such as running, rapid walking, hill-climbing and swimming. These should, of course, be graduated in intensity with varying age and varying degrees of vitality.
Gentle muscular activity after meals promotes normal digestion and should be practised for a quarter or half an hour after each meal, but violent exercises immediately after meals should be avoided, as a large amount of blood is then engaged by the digestive system.
A very important fact for the average man to take into consideration is that, whereas he naturally gets considerable out-of-door exercise in summer, he allows it to lapse in the winter. Such a decided change in the amount of exercise is dangerous and should be avoided by taking regular gymnasium exercise. Even though a gymnasium is not elaborately equipped, use can be made of such games as hand-ball, volley-ball and other available games.
Systematic exercise is important and beneficial, even when the individual finds it uninteresting. The idea, which is now spread abroad, that exercise in which one is not emotionally interested is of no benefit, is quite incorrect. A gentleman who had this opinion was challenged to test it and speedily changed his mind. For an entire winter he faithfully attended a gymnasium, though it was an unceasing bore to him. To his surprise, he found that he had never spent a winter in such good health.
But, although exercise when self-imposed is wholesome, exercise to which one is naturally attracted is more so. Golf, horse-back riding, tennis, usually inspire enthusiasm, and enthusiasm itself is healthful. Walking may also do so, if the walk has an object, as in mountain-climbing, when often the artistic feelings may be enlisted in the sport. Working out an ideal stroke in rowing, perfecting one’s game in polo or other sports, are other examples.
The Greeks lifted their sports to a higher level than ours by surrounding them with imagination and making them a training in esthetics as well as in physical excellence. The American idea is too closely connected with the mere wish to win and the performance of mere “stunts” and not enough with the idea of beauty of physique and control of the body. There is accumulating considerable evidence that college athletics often seriously injure those who engage in them, although they were originated and encouraged for precisely the opposite effect. The value of exercise consists not in developing large muscles nor in accomplishing athletic feats, but in attaining physical poise, symmetry of form, and the harmonious adjustment of the various parts of the body, as well as in furthering the proper activity of cell-tissues and organs and the elimination of waste products.
Even those whose work is largely muscular, unless it involves most of the muscular system, may do well to exercise the unused muscles—although Nature herself produces to some extent the necessary compensation by what is known as the “law of synergic movement,” by which unused muscles profit by the exercise of those which are used.
Not only the functions of the body but those of the mind require exercise—exercise in thinking, feeling, and willing. A person who does not read or think loses some of his ability to read or think. The physical worker, for instance, often allows his mind to become dull and sodden. The accountant adds up figures all day and has no chance to exercise his judgment or other mental faculties. In the same way a person who does not exercise his artistic, poetic, or affectional side will suffer its atrophy. The plaint of Darwin that he had allowed his taste for music and poetry to atrophy could to-day be made by many intellectual specialists. Good music is especially healthful.
The exercise of the will is of first importance. Many young people to-day are brought up so well protected that they have lost the power to decide for themselves. Will is exercised every time a decision is made. One of the advantages of all games is that they require decision by the players. A game like baseball calls out the exercise of almost every power. It requires the mind to play, the emotions to enjoy, the will to decide, the muscles to act, and all in mutual coordination.
Since the work of most people is likely to produce some unhygienic element which can not be avoided, a compensation should be sought in an avocation or “hobby,” to be practised out of regular working hours. The avocation should be far removed from the nature of the regular work. Often the avocation can serve a productive purpose. Gladstone and Horace Greeley sawed wood or chopped down trees for recreation. A well-known engineer divided his recreation between writing stories and painting pictures.
But one should beware of turning his play itself into work. Some people read Shakespeare to “improve their mind,” and make as hard work of it as though they were studying geometry. We should enjoy our recreations for their own sake, or else they are not recreations. All work and no play make not only dull boys but dull men and women.
In some form, every one can secure recreation. If one can not play golf, or polo, or tennis, or swim, or climb the Alps, at least he can walk, and, if he tries, he can do so in good company on interesting highways and byways.
Recreations in which more persons than one take part are far superior in this respect to those of a solitary nature. They require a give and take, a matching of wits, a feeling of rivalry, and at the same time, companionship.
Plays and moving pictures of the right character and free from morbid suggestions, if enjoyed in moderation, are hygienic. Comedy is generally more wholesome than tragedy. Laughter lengthens life; tears do not.
The proper kind of reading is often a most beneficial type of recreation.
It is best for the average individual to avoid literature that deals with the morbid and pathological, that depicts and analyzes abnormal psychological conditions. Such studies are better left for alienists. Literature of mawkish sentimentality should also be avoided. Within the range of sound literature there is a wide choice of abundant material affording healthful mental suggestions.
Dancing combines wholesome exercise, social enjoyment, and the acquirement of skill and grace, but it is seldom of much hygienic value because it is frequently overdone, and often involves bad air and loss of sleep. In one large plant where the employes were examined by the Life Extension Institute, the management regarded the harmful effect of dancing as their chief obstacle to efficiency. Many of the large force of girls and women were accustomed to dance until late in the night, bringing on a condition of chronic fatigue.
Card-playing and similar games afford wholesome mental recreation for some persons. However, they, too, are liable to be associated with late hours, and other disadvantages even when they do not degenerate into gambling. Card-playing, dancing, and many other popular forms of amusement often border on dissipation.
Amusements which weaken and degrade are not hygienic. Many who need amusement make the fatal mistake of getting it in suicidal ways, in the saloons, dives, and the low dance-halls.
Play is simply a half way stage between work and rest. In a hygienic life there must be a certain amount of actual rest. Every bodily power requires rest after exertion. The heart rests between beats. The muscles require relaxation after every contraction. The man who is always tense in muscle and nerve is wearing himself out.
The power to relax, when fatigue requires it, is one of the most important safeguards one can possess. Lying down when tired is a good rule. A very hard-working college president when asked about the secret of his working-power and length of life replied, “My secret is that I never ran when I could walk, never walked when I could stand, never stood when I could sit, and never sat when I could lie down.”
Such rules as these are valuable, of course, only when the requirements of one’s occupation tend toward ceaseless activity. For idle and lazy people the rule should be reversed—never to lie down when one could sit, never to sit when one could stand, never to stand when one could walk, and never to walk when one could run! A complete life must have all in due proportion. Relaxation is only a short vacation, as it were, between two activities.
Bathing and swimming supply, in their numerous forms, examples of both healthful activity and relaxation. A cold spray or shower, alternated with hot, affords excellent gymnastics for the skin. A very hot bath, lasting only a minute, or even a hot foot-bath, is restful in cases of general fatigue. The most restful of all is a neutral, that is, tepid, bath of about the body-heat (beginning at 97 or 98 degrees and not allowed to drop more than 5 degrees and continued as long as convenient).
The wonderful nervous relaxation induced by neutral baths is an excellent substitute for sleep in case of sleeplessness, and often induces sleep as well. Neutral baths are now used not only in cases of insomnia and extreme nervous irritability, but also in cases of acute mania. When sleep occurs in a neutral bath, it is particularly restful. A physician who often sleeps in the bath tub expresses this fact by saying that “he sleeps faster” there than in bed.
Sleep may also be induced by monotonous sound, or lack of sound, or the monotonous holding of the attention. Keeping awake is due to continued change and interruption or arrest of the attention.
Exercise taken in the afternoon will often promote sleep at night in those who find sleep difficult. Slow, deep, rhythmic breathing is useful when wakeful, partly as a substitute for sleep, partly as an inducer of sleep.
Sleep is Nature’s great rejuvenator, and the health-seeker should avail himself of it to the full. Our sleep should not only be sufficient in duration but also in intensity, and should be regular.
The number of hours of sleep generally needed varies with circumstances. The average is seven to nine. In general one should sleep when sleepy and not try to sleep more. Growing children require more sleep than grown-ups. Parents often foolishly sacrifice their children’s sleep by compelling them to rise early for farm “chores,” or in order to sell papers, or for other “useful” purposes.
One’s best sleep is with the stomach empty. It is true that food puts one to sleep at first, by diverting blood from the head; but it disturbs sleep later. Water, unless it induces bladder-action during the night, or even fruit, may be taken without injury before retiring. If one goes to bed with an empty stomach, he can often get along well with six or seven hours’ sleep, but if he goes to bed soon after a hearty meal, he usually needs from eight to ten hours’ sleep.
It has already been pointed out that sleeping outdoors is more restful than sleeping indoors.
A pillow is not a necessity if one sleeps lying prone with one arm extended above the head and the leg opposite drawn up. This sleeping attitude can easily be reversed to the opposite side. It has one advantage over pillow-sleeping, that of not tending to round shoulders. This prone position is often used now for infants, but is seldom enjoyed by adults.
A modern “hard” bed is far preferable to the old-fashioned soft (and hot) feather bed.
The character of sleep depends largely on the mental attitude on going to bed. One should get into the habit of absolutely dropping work and cares at bed-time. If then one suggests to himself the pleasantest thought which memory or imagination can conjure up, his sleep is likely to be far more peaceful and restful than if he takes his worries to bed, to keep him awake until sleep comes in spite of them, and to continue to plague him in his dreams. If one is worried, it is a good plan to read something diverting, but not exciting, just before retiring.
As we have seen, not only the body but the mind needs its due activity and rest. As to the mind, the important question is the quality of the activity rather than the quantity. If we are to be really healthy, our mental attitude must be healthy. A healthy mental attitude implies many elements, but they are all roughly summed up in the word “serenity.” Probably no other one hygienic requirement is of greater importance than this. Moreover, the attitude of “healthymindedness” should be striven for not only in order to produce health, but as an end in itself, for which, in fact, even health itself is properly sought. In short the health of the body and the health of the mind act and react on each other.
We may generally keep serene through following the other measures already described. Discontent is undoubtedly very often the consequence of wrong conditions in the body, and though melancholy, worry, peevishness, fear generally appear as arising from outward conditions, there are usually real physical sources, existing within the body itself. These are at times most difficult of recognition. A person who is physically ill is likely to be ill-satisfied with everything, without suspecting the fundamental cause of the discontent. When the apparent “cause” is removed, the discontent remains none the less, and fastens itself on the next thing that comes along.
Although some little event such as the mistake of a tradesman or a cross word of a friend may seemingly “cause” a disagreeable reaction in a man if he is ill (whether he knows he is or not), the same “cause” does not necessarily produce that same reaction at all times. When he is in a healthy mood, the “cause” may be entirely inadequate to bring about the same result.
The near approach to the menstrual period in women is often accompanied by mental depression and physical fatigue which it is almost impossible for the sufferer to recognize at the time as caused by anything but “real” or outside misfortunes.
Other physical conditions act in the same way. The hidden cause may be constipation, eye-strain, or the effects of alcohol or other drugs, a sedentary life, a bad posture, or weak abdominal muscles; and the proper remedy may be an enema, a pair of glasses, a vigorous swim, deep breathing exercises or an abdominal supporter, an erect carriage or a general change of daily habits. A young man returning from a surveying trip in the mountains of Colorado in which an ideal hygienic out-of-door life was lived, said, “I never saw so good-natured a crowd of rough men. Nothing ever seemed to make them angry. They were too full of exultant health.”
Health for the body awakens mental capacities where they exist. Failure in mental work can often be traced to failure in physical health; and the restoration of bodily health is often essential to success in the tasks of the mind. This is especially true of the artistic professions, where the kind of product is dependent so largely upon the state of the emotions, upon exhilaration and enthusiasm. A noted sculptor who, a number of years ago, was “down and out” in the artistic world, after a period of years “came back” with a masterpiece, having adopted a more hygienic life.
Epictetus taught that no one could be the highest type of philosopher unless in exuberant health. Expressions of Emerson’s and Walt Whitman’s show how much their spiritual exaltation was bound up with their health conditions and ideals. “Give me health and a day,” said Emerson, “and I will make the pomp of emperors ridiculous.”
But what most concerns us in this section is that the mind has an important influence over the condition of the body. A Kansas poultryman, who owns a hen which he claims to value at $10,000 because of her qualities as a breeder, a few years ago knew a great deal more about how to maintain the health of his poultry than he did about how to maintain his own health. Long and bitter experience had taught him that he obtained freedom from sickness among hens only by being very careful to feed them on a special diet; to give them drinking water at regular intervals—warmed in winter; to supply them with well ventilated and cleanly houses, and so on. But, after all this, he found there was one condition, which, if unfulfilled, still precluded the realization of maximum possibilities. “A discontented hen won’t lay eggs,” was the startling discovery. “When I see a man go into the yard and ‘holler’ loudly at the hens, and wave his arms, making them scatter, frightened, in all directions, I say to that man: ‘You call at the office and get your pay and go.’ But when I see a man go into the yard, and call gently to the hens, so that they all gather around him and coo and cluck and eat out of his hand, I raise that man’s pay.”
It can not be too much emphasized that mental perturbation affects the body in many ways. Shame fills our cheeks with blood. Fear drives the blood away. Excitement quickens the heart-beat. Grief brings tears, the reaction of glands about the eyes, and sighs, the disturbances of regular breathing. A great shock to the mind may cause fainting, the rush of blood from the head into the abdomen. Worry will interfere with digestion and sleep. The X-ray has detected the arrest of the peristaltic movement of the stomach and intestines because of a strong emotion. Some peculiarly constituted people, who take their work and obligations with a kind of seriousness that amounts almost to fear, can not eat anything of consequence until their day’s work is ended. The digestive processes seem to be at a standstill until then. A curious fact is that strong emotion may lead to a great increase in the sugar in the blood, sometimes enough to cause its appearance in the urine as though the person had diabetes. One man expresses this by saying, “bitterness of soul banishes sweetness even from the body.”
It is doubtless on account of such influences of the mind on the body that some persons who have attempted to improve their health by what they call “thoroughly masticating” their food—but who have interpreted this phrase as having a purely mechanical meaning—have wondered why they were not benefited when they forcibly held their food in their mouths until they performed a certain number of chews, while in fact they were making a bore of eating and were forgetting to taste and enjoy. The mind and the emotions refuse to be ignored in this way, and exact due penalty from the body when they are not satisfied. To attain the desired results from any hygienic measure, it is apparently necessary, in some degree at least, to satisfy the mind along with the body.
There is in fact a danger to which some people are especially subject—the danger of becoming hypochondriacs from paying too much attention to physical hygiene. Such a person becomes fearful lest he is not doing exactly the right thing. He looks suspiciously at every article of food and fears that it will disagree. He fears that he has strained his heart; he worries over the loss of an hour’s sleep; he chafes because his employer has not given him a vacation at the right time or of the right length. The hypochondriac thus neutralizes practically all the benefit of other hygienic measures by disregarding this special measure of keeping serene. It might, in many cases, be better to disregard some rules of hygiene than to worry over them.
On this theory the devotees of mind-cure cults have derided every hygienic measure but one—their “mind-cure.” They sometimes succeed in the “real cure of imaginary ailments,” and the “imaginary cure of real ailments.” In the latter case, the mental contentment lasts only until the real ailment becomes too aggressive to be ignored. But it is a great mistake to stake everything on the simple resource of mental equanimity. In some cases it is criminal, as for instance to refuse surgery for cancer, or outdoor living for tuberculosis.
In its proper place, “mind-cure” is an essential part of individual hygiene. In order to get the benefit of the other rules, there must be no worrying or watching of symptoms. After the regimen of exercise, baths, diet, etc., has been selected, it must be followed as a matter of course, with confidence that it will help, and with patience as to the rate of improvement which will follow.
It would seem that incessant, even if mild, worry is more exhausting than occasional fits of intense anger or fright or overexcitement, just as we waste more water from a spigot left slightly open all the time than from one which is alternately closed and wide open. Worry, if unceasing, will often drain away the largest store of nervous energy. Worry seems, as it were, to short-circuit nerve currents in the brain, which normally form a long circuit through the body. One man, with this simile before him, has found he can stop worrying almost at will, avoid the supposed continuous short circuit and save up his nervous energy until it is needed.