There is no excuse for round shoulders and sunken chests. A few weeks, or at most a few months, will correct this in young people. The older the individual, the longer it takes. If the vertebrae have grown together in bony union no correction is possible.
It is as necessary to relax as it is to exercise. When weary, take a few minutes off and let go physically and mentally. A little training will enable you to drop everything, and even if it is for but five minutes, the ease gives renewed vigor. It does not matter what position is a.s.sumed, if it is comfortable and allows the muscles to lose all tension. At such times it is well to let the eyelids gently close, giving the eyes a rest. Eye strain is very exhausting to the whole body and often results in serious discomfort.
Many do not know how to relax. They think they are relaxed, yet their bodies are in a state of tension. When relaxed any part of the body that may be raised falls down again as though it were dead. People who do much mental work are at times so aroused by ideas that refuse to release their hold until they have been worked out or given expression that they can not sleep for the time being. A few minutes of relaxation then gives rest. When the problem has been solved, the worker is rewarded with sweet slumbers. An occasional night of this kind of wakefulness does no harm, provided no such drugs as coffee, alcohol, strychnine and morphine are used.
We are undoubtedly intended to be useful. Normal men and women are not content unless they are helpful. Hence we have our work or vocation.
However, people who get into a rut, and they are liable to if they work all the time at one thing, lose efficiency. Therefore it is well to have an avocation or a hobby to sharpen mind and body.
It does not make much difference what the hobby is, provided it is interesting. We waste much time that could give us more pleasure if it were intelligently employed. An hour a day given to a subject for a few years in the spirit of play will give a vast fund of information and may in time be of inestimable benefit.
Those who labor much with the hands would do well to take some time each day for mental recreation, and those who work in mental channels should get joy and benefit from physical efforts. A few hobbies, depending upon circ.u.mstances, may be: Photography, music, a foreign language, the drama, literature, history, philosophy, painting, gardening, raising chickens, dogs or bees, floriculture, and botany. Some people have become famous through their hobbies. They are excellent for keeping the mind fluid, which helps to retain physical youth.
There is something peculiarly beneficial about tending and watching growing and unfolding things. It is well known that women remain young longer than men. We have good reason to believe that one of the causes is their intimate relation with children. Growing flowers, vegetables, chickens and pups have the same influence in lesser degree. Tender, helpless things bring out the best qualities in our natures. We can not be on too intimate terms with nature, so, if possible, select a hobby that brings you closely in contact with her and her products.
CHAPTER XXIII.
BREATHING AND VENTILATION.
The respiratory apparatus is truly marvelous in beauty and efficiency.
Medical men complain about nature"s way of constructing the alimentary ca.n.a.l, saying that it is partly superfluous, but no such complaint is lodged against the lungs and their accessories.
The respiratory system may be likened in form to a well branched tree, with hollow trunk, limbs and leaves: The trachea is the trunk; the two bronchi, one going to the right side and the other to the left side, are the main branches; the bronchioles and their subdivisions are the smaller branches and twigs; the air cells are the leaves.
The trachea and bronchi are tubes, furnished with cartilaginous rings to keep them from collapsing. They are lined with mucous membrane. The bronchi give off branches, which in turn divide and subdivide, until they become very fine. Upon the last subdivisions are cl.u.s.tered many cells or vesicles. These are the air cells and here the exchange takes place, the blood giving up carbonic acid gas and receiving from the inspired air a supply of oxygen. This exchange takes place through a very thin layer of mucous membrane, the air being on one side and the blood capillaries on the other side.
The whole respiratory tract is lined with mucous membrane. This membrane is ciliated, that is, it is studded with tiny hairlike projections, extending into the air pa.s.sages. These are constantly in motion, much like the grain in a field when the wind is gently blowing. Their function is to prevent the entry of foreign particles into the air cells, for their propulsive motion is away from the lungs, toward the external air pa.s.sages.
In some of the large cities where the atmospheric conditions are unfavorable and the air is laden with dust and smoke, the cilia are unable to prevent the entrance of all the fine foreign particles in the air. Then these particles irritate the mucous membrane, which secretes enough mucus to imprison the intruders. Consequently there is occasionally expulsion of gray or black mucus, which should alarm no one under the circ.u.mstances, if feeling well. Normally the mucous membrane secretes only enough mucus to lubricate itself, and when there is much expulsion of mucus it means that either the respiratory or the digestive system, or both, are being abused. At such times the sufferer should take an inventory of his habits and correct them.
The air cells are made up of very thin membrane. So great is their surface that if they could be flattened out they would form a sheet of about 2,000 square feet. We can not explain satisfactorily why it is that through their walls there is an exchange of gases, nor how the respiratory system can act so effectively both as an exhaust of harmful matter and a supply of necessary elements. The distribution of the blood capillaries, so tiny that the naked eye can not make them out, is wonderful. Under the microscope they look like patterns of delicate, complex, beautiful lace.
The lungs are supplied with more blood than any other, part of the body.
A small part of it is for the nourishment of the lung structure, but most of it comes to be purified. After the blood has traveled to various parts of the body to perform its work as a carrier of food, and oxygen and gatherer of waste, it returns to the heart and from the heart it is sent to the lungs. There it gives up its carbonic acid gas and receives a supply of oxygen. Then it returns to the heart again and once more it is sent to all parts of the body to distribute the vital element, oxygen.
The lungs give off watery vapor, a little animal matter and considerable heat, but their chief function is to exchange the carbonic acid gas of the blood for the oxygen of the air. When the fats, sugars and starches, in their modified form, are burned in the body to produce heat and energy, carbonic acid gas and water are formed. The gas is taken up by the blood stream, which is being deprived of its oxygen at the same time. This exchange turns the blood from red into a bluish tinge. The red color is due to the union of oxygen with the iron in the blood corpuscles, forming rust, roughly speaking.
The fine adjustment that exists in nature can be seen by taking into consideration that animals give off carbon dioxide and breathe in oxygen, while vegetation exhales oxygen and inhales carbon dioxide. In other words, animal life makes conditions favorable for plant growth, and vegetation makes possible the existence of animals.
An animal of the higher cla.s.s can live several days without water, several weeks without food, but only a very few minutes without oxygen.
When the blood becomes surcharged with carbonic acid gas, and oxygen is refused admittance to the lungs, life ceases in about five or six minutes. From this it can easily be seen how important it is to have a proper supply of oxygen. Acute deprivation of this element is immediately fatal, and chronic deprivation of a good supply helps to produce early deterioration and premature death. The lungs can easily be kept in good condition, and when we ponder on the beautiful and effective way in which nature has equipped us with a respiratory apparatus and an inexhaustible store of oxygen, surely we must understand the folly of not helping ourselves to what is so vital, yet absolutely free.
Wrong eating and impure air are largely responsible for all kinds of respiratory troubles, from a simple cold to the most aggravated form of pulmonary tuberculosis. Exercise and deep breathing will to a great extent antidote overeating, but there is a limit beyond which the lungs refuse to tolerate this form of abuse.
Experiments have shown that if the carbonic acid gas thrown off daily by an adult male were solidified, it would amount to about seven ounces of solid carbon, which comes from fats, sugars and starches that are burned in the body. It is well to remember that there are various forms of burning or combustion. Rapid combustion is exemplified in stoves and furnaces, where the carbon of coal or wood rapidly and violently unites with oxygen. Slow combustion takes place in the rotting of wood, the rusting of iron and steel and the union of oxygen with organic matter in animal bodies. Both processes are the same, varying only in rapidity and intensity.
People who daily give off seven ounces of carbon are overworking their bodies. They take in too much food and consequently force too great combustion. This forcing has evil effects on the system, for under forced combustion the body is not able to clean itself thoroughly. Some of the soot remains in the flues (the blood-vessels) and is deposited in the various parts of the engine (the body). Result: Hardening, which means loss of elasticity and aging of the body. Aging of the body results in deterioration of the mind. Proper breathing is fine, but unless it is also accompanied by proper eating it does not bring the best results.
The atmospheric air contains about four parts of carbonic acid gas to 10,000 parts of air. The exhaled air becomes quite heavily charged with this gas, about 400 to 500 parts in 10,000. It does not take long before the air in a closed, occupied room is so heavily charged with this gas and so poor in oxygen that its constant rebreathing is detrimental. The blood stream becomes poisoned, which immediately depresses the physical and mental powers. Warning is often given by a feeling of languor and perhaps a slight headache. People accustom themselves to impure air so that they apparently feel no bad effects, but this is always at the expense of health. The senses may be blunted, but the evil results always follow. To keep a house sealed up as tightly as possible in order to keep it warm saves fuel bills, but the resultant bodily deterioration and disease cause enough discomfort and result in doctor bills which more than offset this saving. It is poor economy.
A constant supply of the purest air obtainable must be furnished to the lungs; otherwise the blood becomes so laden with poison that health, in its best and truest sense, is impossible.
The air should be inhaled through the nose. It does not matter much how it is exhaled. The nose is so constructed that it fits the air for the lungs. The inspired air is often too dry, dusty and cold. The normal nose remedies all these defects. The mucous membrane in the nasal pa.s.sages contains cilia, which catch the dust. The nasal pa.s.sages are very tortuous so that during its journey through them the air is warmed and takes up moisture.
Habitual mouth breathing is one of the causes of the hardening and toughening of the mucous membrane of the respiratory pa.s.sages, for the mouth does not arrest the irritating substances floating in the air, nor does it sufficiently warm and moisten the inspired air. Irritation produces inflammation and this in turn causes thickening of the membranes. Then it is very easy to acquire some troublesome affliction such as asthma. Very cold air is irritating, but the pa.s.sage through the nose warms it sufficiently.
The evil results of mouth breathing are well seen in children, in whom it raises the roof of the mouth and brings the lateral teeth too close together. Then the dentists have to correct the deformity and the children are forced to suffer protracted inconvenience. This mouth breathing is mostly due to wrong feeding, especially overfeeding, which causes swelling of the mucous membrane, thus impeding the intake of the air through the nose and forcing it through the mouth. The chief curative measure is obvious. Cut down the child"s food supply and give food of better quality. Remember that children should not be fat.
Normal breathing is rhythmical, with a slight rise of the abdomen and chest during inspiration and a slight falling during expiration. Watch a sleeping baby, and you will understand what is meant. The ratio of breathing to the beating of the heart is about one to four or five.
Whatever accelerates the heart causes more rapid breathing and vice versa. Breathing is practically automatic, and were we living under natural conditions we should need to pay no attention to it, but inasmuch as our mode of life prevents the full use of the lungs a little intelligent consideration is necessary to attain full efficiency.
The body should be left as free as possible by the clothes and especially is this true of the chest and waist line. Women sin much against themselves in this respect. Most of them find it absolutely necessary for their mental welfare to constrict the lower part of the chest and the waist line a great part of the time, for really it would not do to be out of fashion. The statue of Venus de Milo is generally considered to represent the highest form of female beauty and perfection in sculptural art. If living women would consent to remain beautiful, instead of being slaves to fashion, it would be much better for themselves and for the race. A corseted woman can not breathe properly, even if she can introduce her hand between the body and her corset to prove that she is not constricted. The natural curves of women are more graceful than those produced by the corset. It would be an easy matter to give the b.r.e.a.s.t.s sufficient support, if they need support, without constricting the body, and then take enough exercise to keep the waist and abdomen firm and in shape to accord with a normal sense of what is beautiful and proper.
Woman does right in being as good looking as possible, and it would do man no harm to imitate her in this, for truly, "Beauty is its own excuse for being." But beauty and fashion seldom go hand in hand. Look at the modes which were the fashion, and you will be compelled to say that many of them are offensive to people of good taste. American women should cease imitating the caprice of the women of the underworld of Paris.
There are indications that women are liberating themselves somewhat from the chains of fashions, as well as from other ridiculous things, so let us hope that they will soon be brave enough to look as beautiful as nature allows them to be, both in face and figure.
The lungs, like every other part of the body, become weakened when not used. The chest cavity enlarges during inspiration, but this enlargement is prevented if there is constriction of the lower ribs and the waist.
The normal breathing is abdominal. Such breathing is health-imparting.
It ma.s.sages the liver gently with each breath and is mildly tonic to the stomach and the bowels. It truly gives internal exercise. It helps to prevent constipation.
Shallow breathing causes degeneration of lung tissue, and indirectly degeneration of every tissue in the body, for it deprives the blood of enough oxygen to maintain health. It also prevents the internal exercise of the abdominal organs, which is a necessary activity of the normal organism. Shallow breathers only use the upper parts of the lungs. It is not to be wondered at that the lower parts easily degenerate. In pneumonia, for instance, the lower part is usually first affected, and in tuberculosis one often can get the physical indications in the lower part of the lungs posteriorly before they can be found any other place.
The upper parts have to be used and consequently they get more exercise and more blood and hence become more resistant. It is well known that when the upper part of the lungs become affected the disease is very grave.
Men, as well as women, are guilty of shallow breathing. Many men are very inactive and their breathing becomes sluggish. This can be remedied by taking vigorous exercise and a few breathing exercises. Because abdominal breathing is the correct way, some physical culturists, who mix the so-called New Thought with their system, advocate exercising and concentrating the mind on the abdomen at the same time. This is unnecessary, for the proper exercises and the right att.i.tude will cause abdominal breathing without giving the abdomen special thought.
Man was evidently intended to earn his food through physical exertion and exercise, and so long as he did this the lungs were compelled to expand. A few running exercises or hill or mountain climbs will suffice to prove the truth of this statement. However, now that man can ride on a street car and earn, or at least get, his daily bread by sitting in an office, it is necessary to exercise a little in order to get good results. The farmer who sits crouched up on a plow, mower or binder also fails to use his lungs, but if he gets out and pitches hay or bundles of grain, he is sure to get what oxygen he needs.
Everyone should get into the habit of breathing deeply several times a day. Upon rising in the morning, go to the open window or out of doors and take at least a dozen slow, deep breaths, inhaling slowly, holding the air in the lungs a few moments and exhaling slowly. This should be repeated noon and night. Every time when one is in the fresh air, it is well to take a few full breaths. By and by the proper breathing will become a habit, to the great benefit of one"s health.
There are many breathing exercises, but every intelligent being can make his own exercises, so I shall describe but one. Have the hands hanging at the sides, palms facing each other. Inhale slowly and at the same time bring the arms, which are to be held straight, forward and upward, or outward and upward, carrying them as far up and back over the head as possible. The arm motion is also to be slow. About the time the arms are in the last position a full inspiration has been taken. Hold the position of the arms and the breath a few seconds and then slowly exhale and slowly bring the arms back to the first position. Repeat ten or twelve times. If while one is inhaling and raising the arms, one also slowly rises on the toes and slowly resumes a natural foot position while exhaling, the exercise will be even better.
Hollow-chested young people can attain a good lung capacity and good chest contour in a very reasonable time. Persistence in proper breathing and proper exercise will have remarkable results in even two or three months, and at the same time nature will be painting roses on pallid cheeks. It is easy to increase the chest expansion several inches. Those who expand less than three and one-half inches should not be satisfied until they have gone beyond this mark. Elderly people can also increase their chest expansion and breathing capacity, but it takes more time, for with the years the chest cartilages have a tendency to harden and even to ossify. The less breathing the sooner the ossification comes.
Many people are afraid of night air, for which there is no reason. The absence of sunshine at night does no more harm than it does on cloudy days. During the night, of all times, fresh air is needed, for less is used, and what little is breathed should be of as good quality as circ.u.mstances permit. Open the windows wide enough to have the air constantly changing in the bedroom. During the winter it will be necessary to put additional clothes on the bed, for no one can obtain the best of slumbers while chilled. Some may find it a better plan to use artificial heat in the foot of the bed. At any rate, during cold weather better covering is required for the legs and for the feet than for any other part of the body. People with good resistance can sleep in a draught without the least harm, but ordinary people should not sleep in a draught. It is easy to use screens so that the wind does not blow upon the face. If the air is kept stirring in the chamber the sleeper gets enough without being in a current.
Some are in the habit of closing their bedroom windows and doors at night and opening them for a thorough airing during the day. If the bedrooms must be closed, close them during the day and open them wide at night, for that is when the pure air is needed. It does not make much difference whether they are open or closed while being unoccupied. It is actually sickening to enter some bedrooms and be compelled to breathe the foul air.
When people are ill the rooms should have fresh air entering at all times. Sick people give off more poisons than do those in good health and they need the oxygen to burn up the deposits in the system.
An early morning stroll while most people are in bed is very instructive. It will be found that some houses are shut up as tightly as possible and that only a few are properly ventilated. A person who insists on keeping his window open in winter is often looked upon as a freak. What is the result of this close housing? The first result is that the blood is unable to obtain the required amount of oxygen and is poisoned by the rebreathing of the air in the room. In the morning the sleeper wakes feeling only half rested, and it takes a cup of coffee or something else to produce complete awakening. The evil results are c.u.mulative, and after a while the bad habit of breathing impure air at night will be a great factor in building disease of some kind.
One reason why some are so afraid of fresh air, especially at night, is that they become so autotoxemic through bad habits, especially improper eating habits, that a slight draught causes them to sneeze and often catch cold and they believe that the fresh air causes the irritation.
This is not so. The irritability comes from within, not from without.
After becoming accustomed to good ventilation at night it is almost impossible to enter into restful slumbers in a stuffy room.
Savages are singularly free from respiratory diseases, and the reason is without doubt that they do not house themselves closely. In some parts of the world they fear to let civilized men enter their abodes, for they may bring respiratory diseases.