Synopsis
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1916 Excerpt: ... CHAPTER V FOOD AND DRINK 32. Food and Health.--The food we eat has a great deal to do with our health. To be perfectly well, we must eat the right kind of food. We must not eat too much or too little. Our food must be clean. It must be properly prepared. We must eat it at the right time and in the right way. When we think of all this, we can understand why food has so much to do with good health. 33. Two Uses of Food.--Food is burned up in the body to make heat and power, just as coal is burned in an engine. As the food passes through the stomach and the intestines, the nourishing parts of it are taken up by the blood. Each part of the body takes some of this food from the blood and stores it up until it is needed. Most of it is stored up in the muscles. Here it is burned up, a little at a time, more when we work and less when we rest. This is the first great use of food. It acts as fuel, to furnish heat and power. Food has another great use. Most children can guess what it is. You are all growing. You are larger now than you were last year, and next year you will be larger still. It is the food you eat that makes you grow. The body needs food to build with, as well as food to burn up. Even grown persons need food for building, for parts of their bodies are always wearing out, and these parts must be repaired or built up again. Food has two great uses. Its first use is to act as fuel, to give heat and power to the body. Its second use is to build up and repair every part of the body (Fig. 12). 34. Kinds of Food.--Foods are divided into two kinds, according to their use. They are called fuel foods and building foods. Really, all foods are used both for fuel and for building; but some foods are called fuel foods because they are used mostly for giving heat t...
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