CHAPTER VI

TOBACCO

=43. Harmful eating.=--Men often eat for the fun of eating, and

sometimes they eat harmful things. They chew tobacco and drink strong

drinks, because they like their taste, just as a child eats candy.

=44. Tobacco.=--Men have always drunk strong drink. Within the last

four hundred years, men have learned another way to please a wrong

taste. When Columbus discovered America, the Indians were using

tobacco. They taught the Spaniards how to smoke it, and since then

almost the whole world has used it.

Tobacco is the leaf of a tall plant. It needs a better soil than any

other crop. It takes the richness from the ground, and spoils it for

other crops.

=45. Nicotine.=--About 1/30 of each tobacco leaf is a strong poison.

This poison is called _nicotine_. A drop or two of it, or as much of

it as is in a strong cigar, will kill a man. It gives the tobacco its

smell and taste. Men use tobacco for the sake of a poison.

=46. Why men use tobacco.=--Men give queer reasons for using tobacco.

One smokes for its company, another because he is with company. One

smokes to make his brain think better, and another to keep himself

from thinking. Some use tobacco to help digest their food, and others

use it to keep themselves from eating so much. Boys smoke to make

themselves look like men. The real reason for using tobacco is that

men learn to like its taste, and do not care if it harms them.

=47. Spitting.=--Tobacco in any form makes the saliva flow. Men do not

dare swallow it, for it makes them sick. So they spit it out. No one

likes to see this. It is a dirty and filthy habit. Besides, the saliva

is lost, and cannot help digest food.

Tobacco stains the teeth brown. You can always tell a tobacco chewer

by his teeth. His breath will smell of tobacco, and even his clothes

are offensive to the nose.

=48. Tobacco lessens strength.=--Tobacco always makes a person sick at

the stomach, at first. After a while, he becomes used to it, and an

ordinary chew or smoke does not make him sick. But a large chew or

smoke will always make him sick again. When a person is sick from

tobacco he is very weak. Even if he is not sick, the tobacco poisons

his muscles and makes his strength less. When a man trains for a hard

race he never uses tobacco.

=49. Tobacco hinders digestion.=--Tobacco and its smoke both have a

burning taste. This makes the throat sore, and causes a cough. Tobacco

does not help the stomach to digest food. Smokers and chewers often

have headaches and coated tongues. These are signs of a poor digestion.

=50. Effect upon the young.=--Tobacco is more harmful to boys than to

men. If boys smoke they cannot run fast or long. They cannot work hard

with their brains or hands. They do not grow fast, and are liable to

have weak hearts.

=51. Tobacco harms others.=--Many persons do not like the smell of

tobacco, and no one likes the spit. No one should use it in the

presence of others. The tobacco user's pleasure should not spoil the

comfort and happiness of others.

=52. Snuff.=--Powdered tobacco is called snuff. Snuff causes sneezing.

No one should harm the nose and the whole body for the pleasure of a

sneeze. Years ago snuff was used much more than it is now.

=53. Chewing.=--Chewing tobacco is the most poisonous way of using it,

for it keeps most of the nicotine in the mouth. Chewing will make any

one very sick, unless he spits out all the saliva.

=54. Smoking.=--Men smoke pipes, cigars, and cigarettes. The smoke has

nicotine, and is poisonous. Pipe stems get dirty and full of nicotine.

After a while they smell bad and are very poisonous. An old smoker's

pipe will make a young smoker sick.

=55. Cigarettes.=--Cigars are not so poisonous as a pipe, for more of

the nicotine is burned up. Cigarettes are often made of weak tobacco.

A cigarette does not contain so much tobacco as a cigar. Hence a

cigarette does not cost much. It can be smoked in a hurry. It does not

make a boy so sick as cigars do. Boys and men use a great many

cigarettes where they would not touch a cigar. This makes the use of

cigarettes the most dangerous form of smoking. Selling cigarettes to

young boys is forbidden by law.

=56. Habit.=--When men have used tobacco for some time, they like it

and feel bad without it. So they get into the habit of using it, and

find it hard to stop. The tobacco seems to help them, but it does not

do so. It cheats men, and they do not know it.

=57. Chewing gum.=--Chewing gum is made from pitch or paraffin, for

these substances will not dissolve in the mouth. The gum is flavored

with sugar and spices. The gum and its flavors are not harmful in

themselves, and yet chewing them is harmful. Chewing makes a great

deal of saliva flow. All this saliva is wasted, and when we eat our

meals we may have too little. Then our food will not digest well, but

we shall have dyspepsia and headaches.

By pulling and handling the gum while chewing it, you may get some

poisonous dirt into your mouth, and make yourself very sick.

Even if your gum should not harm you, there is a good reason for

letting it alone. When you are chewing gum, you look as if you were

chewing tobacco. No one likes to see a boy or girl even appearing to

chew tobacco. If you form a habit of chewing gum you will be more

likely to chew tobacco when you are grown.

WHAT WE HAVE LEARNED

1. Men use tobacco for the sake of its nicotine. Nicotine is a

very strong poison.

2. Tobacco causes a man to waste his saliva.

3. Tobacco makes the mouth dry.

4. Tobacco hinders digestion.

5. Tobacco stains the teeth, and makes the breath smell bad.

6. Tobacco makes a person sick at the stomach.

7. Tobacco weakens the muscles.

8. Tobacco is more harmful to the young than to grown persons.

9. Chewing is the worst form of using tobacco.

10. Smoking cigarettes is the worst form of smoking.

Applied Physiology, Including the Effects of Alcohol and Narcotics · 第 6 / 17 章