The use of headlines and subheaders has several benefits for SEO optimization. First, it makes your writing skimmable and easier to read for your readers. Second, people share things that are easy to understand.

In addition, search engine robots will also recognize your headlines when crawling through your site and will use them to understand better what you’re saying, such as which sections are most important.

Additionally, headings and sub-headers increase keyword saturation. However, you should not abuse this by gaming the system.