Writing Homework Help

I’m working on a writing question and need an explanation and answer to help me learn.

Jamal has long-known that smoking is not a healthy behavior. Nevertheless, he started smoking in high school and now that he is in college, he worries about the long-term consequences of his behavior.
Describe how cognitive dissonance theory explains how attitudes and behavior influence one another.
Explain how cognitive dissonance theory provides insight into why Jamal might continue to smoke and also why he might quit smoking.