Matt Cutts, Google’s head of search spam, posted a fun video where fellow Googler, Michael Wyszomierski, cropped out his body in the video to make a point.
The statement Matt made was that there is importance of content in the body of a page and not just the header, such as the title tag. If the title tag and meta data do not match the content in the body of the page on some level, that can confuse Google.
Matt said make sure the stuff in the header is unique and great but make sure you pay attention to the body of your content ensuring it has unique and great content, as well.
It is a very obvious point to most of our readers, but Matt answered this question in a very cute manner, i.e., with his body cropped out.