SUMMARY.
1. In order to be well and useful we must keep the brain and nerves healthy.
2. To keep the brain healthy we need plenty of pure air to breathe; proper exercise of the brain by study; sufficient exercise of the muscles in play and work; plenty of good food to make pure blood; a proper amount of rest and sleep.
3. There are several things we ought not to do. We should not read or study too much. We should not allow ourselves to become excited or angry. We should avoid learning bad habits.
4. Alcohol paralyzes the brain and nerves.
5. Alcohol deceives a person who takes it by making him feel strong when he is weak; warm when he is cold; rich when he is poor; well when he is sick.
6. Alcohol makes men wicked. Most men who commit crimes are men who use liquor.
7. The effects of tobacco upon the brain and nerves are much the same as those of alcohol. Tobacco is very injurious to the mind.
8. Tobacco-using often leads boys to drunkenness and other vices.
9. The use of opium and chloral produces even worse effects than the use of alcohol or tobacco.