Structuring text content to make it more accessible
Organizing your page with helpful titles and headings creates an outline that helps your audience access the most important information more quickly and easily.
Assistive technology users rely heavily on page titles and headings to navigate complex content. Structuring complex content will help all users parse it as well. Headings allow users to jump from one part of a document to another without using a mouse. Screen readers will interpret headings for those who use them.
Note that for this reason, you should not use headings for typographical effects. If you need to increase or decrease the font size of large blocks of text, please use the Normal Paragraph Format and select a new Font size from the Size menu, or use Styles.