\subsection{The Body}This is the sectioning command for the section you are now reading.
You may want to avoid fourth level headings because it requires an additional font for your TEX installation: cmcscsl10. This is a slanted, small caps font. If you have METAFONT working on your system, this is not a problem. Source code for this font is available with the style files. Ask you local TEX guru for help, should you need it.