How to remove Section, SubSection titles?

How to remove Section, SubSection titles?

How do I remove a section/subsection title, but keep the
section/subsection name in the headings and in the table of contents?
For example, I type in my document somewhere,
\section{My Section}
and I get
"(section number) MY SECTION" in the headings,
"(section number) My Section.........(page number)" in the table of contents,
"(section number) My Section" before the first paragraph.
How do I prevent the third item from occurring?
I have been searching for hours and it seems that this should have a
simple one line solution, but I haven't found it. I have thought about
using
\addcontentsline{toc}{subsection}{My Section}
but then I lose "(section number) MY SECTION" in the headings and I lose
the (section number) in the table of contents. So an equivalent set of
question,
How do I add numbered sections to the toc and to the headings?