It's not emotional distraction, it establishes the reason the subject was getting blood tests, which is revealed later in the same sentence. If this is your level of reading stamina you must find yourself very poorly informed. Even a tweet would be too long for you.
tldr
You will not build reading stamina or make yourself well informed with sappy stories. Learn some basic statistics and try reading research papers directly. "I have read more words" is a measure of only that, and nothing else. Maybe also a measure of the ability to not be able to separate wheat from chaff.
it's just fucking annoying, really. just a really irritating, baity way to write