HYGIENE OF THE NERVOUS SYSTEM 3.37 



in our methods of living and systems of education condi- 

 tions that tend to waste the nervous energy. To protect 

 the nervous system from all these threatened dangers 

 requires, among other things, the power of self-control. 

 This enables the individual to direct his life according to 

 his highest ideals and to free himself from habits known 

 to be injurious. Children must have their nervous systems 

 safeguarded by parents and teachers. Especially must 

 they be kept from becoming enslaved to some drug, such 

 as alcohol or the nicotine of tobacco. 



Exercises. i. In what respect is the hygiene of the nervous sys- 

 tem the hygiene of the entire body ? 



2. Of what value in the hygiene of the nervous system is the power 

 of self-control ? How is the habit of self-control formed ? 



3. Name several forms of activity that waste the nervous energy. 



4. Name several influences that react unfavorably on the nervous 

 systems of children. 



5. How may too much reading prove injurious to the nervous 

 system? 



6. What forms of physical exercise are beneficial to the brain 

 worker ? 



7. Why is the use of alcohol even in small quantities to be re- 

 garded as a dangerous practice ? 



8. Name several causes of nervousness. 



9. What are the unanswerable arguments for preventing the use 

 of tobacco by the young ? 



10. Why do cigarettes have a more harmful effect upon the body 

 than other forms of tobacco ? 



1 1 . Enumerate conditions in the schoolroom that dissipate the nerv- 

 ous energy of pupils ; that economize it. 



