In a previous article, it was shown, that the lungs, bowels, kidneys, and skin, were the organs employed in throwing off those waste and noxious parts of the food not employed in nourishing the body. Of this, the skin has the largest duty to perform; throwing off, at least, twenty ounces every twenty-four hours, by means of insensible perspiration. When exercise sets the blood in quicker motion, it ministers its supplies faster, and there is consequently a greater residuum to be thrown off by the skin; and then the perspiration becomes so abundant as to be perceptible. In this state, if a sudden chill take place, the blood-vessels of the skin contract, the blood is driven from the surface, and the internal organs are taxed with a double duty. If the constitution be a strong one, these organs march on and perform the labor exacted. But if any of these organs be debilitated, the weakest one generally gives way, and some disease ensues.
One of the most frequent illustrations of this reciprocated action, is afforded by a convivial meeting in cold weather. The heat of the room, the food, and the excitement, quicken the circulation, and perspiration is evolved. When the company passes into the cold air, a sudden revulsion takes place. The increased circulation continues, for some time after; but the skin being cooled, the blood retreats, and the internal organs are obliged to perform the duties of the skin as well as their own. Then, in case the lungs are the weakest organ, the mucous secretion becomes excessive; so that it would fill up the cells, and stop the breathing, were it not for the spasmodic effort called coughing, by which this substance is thrown out. In case the nerves are the weakest part of the system, such an exposure would result in pains in the head or teeth, or in some other nervous ailment. If the muscles be the weakest part, rheumatic affections will ensue; and if the bowels or kidneys be weakest, some disorder in their functions will result.
But it is found, that the closing of the pores of the skin with other substances, tends to a similar result on the internal organs. In this situation, the skin is unable perfectly to perform its functions, and either the blood remains to a certain extent unpurified, or else the internal organs have an unnatural duty to perform. Either of these results tends to produce disease, and the gradual decay of the vital powers.
Moreover, it has been shown, that the skin has the power of absorbing into the blood particles retained on its surface. In consequence of these peculiarities, the skin of the whole body needs to be washed, every day. This process removes from the pores the matter exhaled from the blood, and also that collected from the atmosphere and other bodies. If this process be not often performed, the pores of the skin fill up with the redundant matter expelled, and being pressed, by the clothing, to the surface of the body, the skin is both interrupted in its exhaling process, and its absorbents take back into the system portions of the noxious matter. Thus the blood is not relieved to the extent designed, while it receives back noxious particles, which are thus carried to the lungs, liver, and every part of the system.
This is the reason why the articles worn next to the skin should often be changed; and why it is recommended that persons should not sleep in the article they wear next the skin through the day. The alternate change and airing of the articles worn next the body by day or night, is a practice very favorable to the health of the skin. The fresh air has the power of removing much of the noxious effluvia received from the body by the clothing. It is with reference to this, that on leaving a bed, its covering should be thrown open and exposed to the fresh air.
The benefit arising from a proper care of the skin, is the reason why bathing has been so extensively practised by civilized nations. The Greeks and Romans considered bathing as indispensable to daily comfort, as much so, as their meals; and public baths were provided for all classes. In European countries, this practice is very prevalent, but there is no civilized nation which pays so little regard to the rules of health, on this subject, as our own. To wash the face, feet, hands, and neck, is the extent of the ablutions practised by perhaps the majority of our people.
In regard to the use of the bath, there is need of some information, in order to prevent danger from its misuse. Persons in good health, and with strong constitutions, can use the cold bath, and the shower-bath, with entire safety and benefit. But if the constitution be feeble, cold bathing is injurious. If it is useful, it can be known by an invigorated feeling, and a warm glow on the skin; but if, instead of this, there be a feeling of debility, and the hands and feet become cold, it is a certain sign, that this kind of bathing is injurious. A bath at ninety-five degrees of Fahrenheit, is about the right temperature. A bath, blood warm, or a little cooler than the skin, is safe for all constitutions, if not protracted over half an hour. After bathing, the body should be rubbed with a brush or coarse towel, to remove the light scales of scarfskin, which adhere to it, and also to promote a healthful excitement.
A bath should never be taken, till three hours after eating, as it interrupts the process of digestion, by withdrawing the blood from the stomach to the surface. Neither should it be taken, when the body is weary with exercise, nor be immediately followed by severe exercise. Many suppose that a warm bath exposes a person more readily to take cold; and that it tends to debilitate the system. This is not the case, unless it be protracted too long. If it be used so as to cleanse the skin, and give it a gentle stimulus, it is better able to resist cold than before the process. This is the reason why the Swedes and Russians can rush, reeking, out of their steam baths, and throw themselves into the snow, and not only escape injury, but feel invigorated. It is for a similar reason, that we suffer less in going into the cold, from a warm room, with our body entirely warm, than when we go out somewhat chilled. When the skin is warm, the circulation is active on the surface, and the cold does not so reduce its temperature, but that increased exercise will keep up its warmth.
When families have no bathing establishment, every member should wash the whole person, on rising or going to bed, either in cold or warm water, according to the constitution. It is especially important, that children have the perspiration and other impurities, which their exercise and sports have occasioned, removed from their skin before going to bed. The hours of sleep are those when the body most freely exhales the waste matter of the system, and all the pores should be properly freed from impediments to this healthful operation. For this purpose, a large tin wash-pan should be kept for children, just large enough, at bottom, for them to stand in, and flaring outward, so as to be very broad at top. A child can then be placed in it, standing, and washed with a sponge, without wetting the floor. Being small at bottom, it is better than a tub; it is not only smaller, but lighter, and requires less water.