Now all this has changed. Men do not want drinkers to work for them. A railroad company will discharge a man at once if he is known to drink at all. A man can now refuse to drink anywhere and men will not think any less of him.
195. Tobacco poisons the muscle cells and makes them weak. At first it makes boys too sick to move. It always poisons the cells even if they do not feel sick.
196. A long life.—A man's body is built to last eighty years, but only a few live so long. If you are careful in your eating and drinking, if you breathe pure air, and if you use your muscles, your body will be healthy and will last the eighty years and more. All through your life you will be strong and able to do good work.
WHAT WE HAVE LEARNED
1. Muscles cover the bones and move the body.
2. Muscle is lean meat. It is made of bundles of cells like strings. Nerves from the brain touch each cell.
3. Each muscle is fast to a bone. It becomes a small string or tendon at the other end. The tendon crosses a joint and is fast to another bone.
4. When we wish to move, the brain sends an order to the muscle cells to make themselves thicker and shorter and so bend the joint.
5. You can feel the muscles and tendons in the arm and wrist.
6. Muscle work makes us breathe deeper, and eat more food. It makes the blood flow faster. So it makes our whole bodies more healthy.