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This is the origin of this alimentary taboo; among the ancient Hebrews it arose, and only comparatively recently has it been suggested that the flesh of these taboo animals was unwholesome. In the eighteenth century, philosophers propagated the erroneous notion that if certain religious legislators had forbidden various aliments, it was for hygienic motives.
This system of alimentary stimulation can be roughly described as a combination of hot-water-drinking and a nerve-center-stimulating process. The best time for giving this method a thorough trial is immediately upon arising in the morning. It should not be attempted at any other time of the day, for it is especially important that the stomach should be free of any recently ingested food.
The inner layer or the invaginated part of the blastoderm, which immediately encloses the gut-cavity is the entoderm, the inner or vegetal germ-layer, from which develop the wall of the alimentary canal and all its appendages, the coelom-pouches, etc. The cells of the entoderm are much larger, darker, and more fatty than those of the ectoderm, which are clearer and less rich in fatty particles.
The way the ancients looked at this matter was, that the food, after being received into the alimentary canal, was then taken up by the branches of this great vein, which are called the 'vena portae', just as the roots of a plant suck up nourishment from the soil in which it lives; that then it was carried to the liver, there to be what was called "concocted," which was their phrase for its conversion into substances more fitted for nutrition than previously existed in it.
Barring eggs and rice, everything tasted like starch or sawdust. The flavors seemed raw and earthy, or suggested dishcloths not too well scalded. I suspect that a good deal of Philadelphia and Caucasian pride lined the alimentary canal of the writer. Now, after a ten-mile tramp, a Japanese meal tastes very much as it does to one native and to the diet born.
Avoid fat that is mixed with starch particles in such foods as fried potatoes and pie-crust. The conditions during meals should always be as pleasant as possible. This refers both to physical surroundings and mental condition. "The processes occurring in the alimentary canal are greatly subject to influences radiating from the brain.
I had fasted and prayed with the monks of a lonely convent; I had mingled with the crowds that shouted glory at camp-meetings; I had listened to the threats of Calvinists and the promises of Universalists; I had been a devout attendant on a Jewish Synagogue; I was in correspondence with an intelligent Buddhist; and I met frequently with the inner circle of Rationalists, who believed in the persistence of Force, and the identity of alimentary substances with virtue, and were reconstructing the universe on this basis, with absolute exclusion of all Supernumeraries.
A bad taste in the mouth is usually a sign of overeating. It comes from the decomposition following a too liberal food intake. If water has a bad taste in the morning or at any other time, it indicates overeating. It may be due to a filthy mouth or the use of alcohol. Heartburn is also due to overeating, and so is hiccough; both come from fermentation of food in the alimentary tract.
What other work besides digestion is carried on by the alimentary canal? What is gained by the mastication of the food? Why should mastication precede the other processes of digestion? What is the work of the tongue in digestion? State the purposes served by the gastric juice. Give reasons for regarding the small intestine as the most important division of the food canal.
Why do the organs of elimination fail to act? Because so much work is thrust upon them that they grow weary and worn; also, a part of the material furnished them is the product of decay in the alimentary tract, and they can not thrive on poor material. Too much food is eaten. An excess of nutritive material, poorly digested, is absorbed. And so we come back to the principal cause, overeating.
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