When you begin to look for information on your topic utilizing nursing databases(CINAHL, Health Source Complete, Medline), it is often not obvious which word or words to use for yout topic.
Subject Headings are strategies for finding alternative terms/words.
Subject Headings works like a thesaurus
Subject Headings names varies according to specfic databases.
When you search core nursing databases you will discover subject headings will have different names.
CINAHL Plus Full Text= CINAHL HEADINGS
Health Source Complete= Subjects
Medline=MeSH 2018