If you want your motor-car to run well and to look good, there are some rules which you must follow. A motor-car must be serviced regularly by someone who knows how to do it. A motor-car must have the right kind of petrol.
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The proper kind of oil must be put in the motor-car, and this oil must be changed from time to time. The motor-car must be kept clean and polished. It must be protected from accident. Now, all these rules do not have to be followed. But they do have to be followed if you want your motor-car to give you good service for a long time.
Likewise, if you want your body to be good looking and to “run well,” there are some rules which you must follow. Sickness is caused by violating, or breaking, the laws, or rules, of health.
A person who keeps all the laws of health will be so well that disease will seldom, if ever, attack him. If germs enter his body, they will almost never be able to live there and cause disease. Such a healthy person is said to have “resistance” to disease. We need to know and follow the important rules of health which give this resistance to disease.
EXERCISE EVERY DAY
Exercise is one of the least thought about and yet one of the most important laws of health. One of the laws of nature is that anything that is not used, atrophies, or becomes smaller, and atrophy is a form of slow death. Lack of exercise is one of the greatest causes of weakness of body and feebleness of mind.
HOW EXERCISE HELPS
Exercise is necessary, not only to keep muscles strong and healthy, but it is also vital for the blood circulation, for the lungs, and for the nervous system. In addition to building up the heart and lungs so that they can resist disease, regular physical exercise helps one to feel better and have more energy. A regular daily program of exercise makes the brain and nerves work better because they receive a better supply of food and oxygen. The nerves go from the brain to tell the muscles what to do. The more exercise the nerves have, the easier it is for the message to get through the nerves to the muscles.
SOME EXERCISES TO DO
Our bodies are constantly obtaining energy from the food we eat. If this energy is not used up in physical exercise, the nerves suffer. Often, worries and tensions are created which prevent sleep and cause all parts of the body to function poorly. This is a problem for people who do not have much exercise in their work, such as clerks, teachers, and executives.
The best type of exercise is useful labour which gives not only exercise, but the enjoyment of seeing something accomplished as well. Gardening is an excellent example of an exercise which can also accomplish good, which it does by improving one’s food supply.
Rapid walking is another excellent exercise and can be done by almost anyone, anywhere. It would be well to spend an hour each day at some good physical exercise, preferably outdoors.