Answer to Question 1
Answer: Like any other document with heading and subheadings, subheadings in a blog allow the reader to more easily move through the document, or identify individual aspects of the document they may be most interested in. The post title or headline can serve as the topic sentence for the entire article. The subheadings in the article are often complete sentences with implied subjects and convey the key message of each paragraph that follows. Each paragraph before the subheading expands on the topic expressed in its subheading, offering examples and more detailed information.
Answer to Question 2
Answer: Small screens make it difficult for readers to scan the page to find the information they want most. Readers can quickly get disoriented and lose the thread of the message because they can't see the big picture. Additionally, mobile devices, particularly phones, can't display as many characters in a single line of text as the typical computer screen can. Reading is more difficult on small screens, and consequently users' ability to comprehend what they read on mobile devices is lower than it is on larger screens. Short, specific blocks of information are less intimidating and allow the reader to take micro rests. Micro rests give the reader a few seconds to comprehend the information they just read. The rests also allow the eyes to take a break, and allow for greater focus and comprehension as the reading continues. Micro rests also minimize the need to swipe to new screens. Short and meaningful paragraphs that are visually appealing and that are designed to help readability will make the communication as easy to read as possible.