Ha! Getting in trouble for being in the bathroom too long is a male rite of passage. Lol
SEO stands for search engine optimization. Basically, SEO makes you look good to Google and helps your articles rank higher in Google search.
The H2 subheadings are all about article structure.
I started to fully explain here in this comment, but the explanation got too long so I decided just to write an article about it. 😜
I'll come back here and link to the full article once it's published.
Update: I submitted the article to The Startup publication, so hopefully it will be published in the next few days.