Questions. 1. What are the uses of the sweat glands? 2. How often should people take baths? 3. How can you tell whether a hot or a cold bath is better for you? 4. Tell how finger nails should be cared for. 5. How should toe nails be treated?
Remember. 1. If you do not keep your body clean, the glands of the skin cannot do their work properly. 2. Every person should take a bath at least twice a week; some persons need a bath every day in order to keep clean. 3. If you take a bath in cold water, and the skin does not become warm and pink when you rub it with a rough towel, a cold bath is not good for you. 4. Cold baths should be taken in the morning on getting up. 5. Warm baths should be taken in the evening before going to bed. 6. Finger nails should always be kept clean and neat; dirty, untidy nails make ugly hands.
[CHAPTER XV]
COMMON POISONS TO BE AVOIDED
Many people are killing the cells of their bodies by taking certain poisons into them. There are many kinds of poisons that can be taken into the body, but we are going to learn now about only two. These are tobacco and alcohol.
Fig. 36. Effect of cigarette smoking.
Proof that tobacco is a poison
Tobacco is a poison. Those of you who have tried to smoke know this, because it made you sick the first time you tried it. There are many other indications that tobacco is a poison. We know that it affects the red blood cells in such a way that they do not carry the oxygen as well as do those of people who do not smoke. We know that it has a very bad effect on the heart and that it interferes with the action of the nervous system.