Keywords are the main ideas of your paper. They represent the main concepts of your research topic and are the words used in everyday life to describe the topic. Keywords should contain words and phrases that suggest what the topic is about. Also include words and phrases that are closely related to your topic. For example, if the paper is about addiction, use words to help examine that concept. Try narrowing it down by person, place, thing, issues, setting, demographics.
Example: 
