THE NERVOUS SYSTEM. 155 



2, How do good habits help us? 



3, Does the brain need exercise ? 



SECTION V. 1. For what chiefly are alcoholic drinks used ? Do 

 they increase strength? What is their first effect in moderate 

 amount? 



2, 3, What is the effect if drinking continues ? Are all affected 

 in the same way by alcohol ? 



4, What are the after-effects of free drinking? Is the appetite 

 easily controlled ? 



5, How does alcohol make a toper's face red ? 



6, For what part of the body has alcohol a special affinity? 

 What diseases of the brain are among its effects ? 



7, Give a summary of the effect of alcohol on the brain and 

 nerves. 



