We must also remember that the brain needs a great deal of blood. If we take alcohol into our blood, much of it goes to the brain. There it affects the nerves, and makes a man lose control over his actions.
EXERCISE.
When you run, you can feel your heart beating. It gets an instant of rest between the beats.
Good exercise in the fresh air makes the heart work well and warms the body better than a fire could do.
DOES ALCOHOL DO ANY HARM TO THE HEART?
Your heart is made of muscle. You know what harm alcohol does to the muscles.
Could a fatty heart work as well as a muscular heart? No more than a fatty arm could do the work of a muscular arm. Besides, alcohol makes the heart beat too fast, and so it gets too tired.
REVIEW QUESTIONS.
1. Where is the heart placed?
2. Of what is it made?