Lesson 19:

Conditions Affecting

 Human Health


In this lesson, you will learn why people get sick and the way social conditions impact health around the world. 


 
 

 

 

In this lesson, you will:

  • learn about what causes human disease
  • learn about the factors that may determine how long you will live



Key terms for this lesson:

  • bacteria
  • fungi
  • germs
  • life expectancy
  • microbes
  • parasites
  • pathogens
  • viruses