CINAHL Subject Headings make up a controlled vocabulary that is used for indexing medical journal articles and books developed and defined by medical librarians, practitioners, and researchers to aid in rapidly finding these resources.
Rather than using natural language or keyword searching, you can use specific subject headings defined by medical experts to find the resources you need. This allows for much more efficient and precise searching and a greater likelihood that you will find the articles you are actually looking for, rather than articles unrelated to your research problem.
Tip: Remember, when searching for research articles and books, you need to think about the language that a researcher would use to describe or discuss the problem!
You can read more about using CINAHL Subject Headings at the link below or watch the embedded video created by EBSCOhost which explains how to use CINAHL/MeSH subject headings when searching in CINAHL.