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ok give me a few minutes, i'll check it out

I can't comment on it due to its age.
Well, it helps to use bigger text in the body on the intro sentence like this:

The vagus nerve controls involuntary body functions.

I mix up my smaller text with bigger ones to help people not get bored with my writing.

Also, you can always start your beginning sentence with a question or some shocking detail. That grabs people's attention.

Wow..these do make a huge difference! right, will have to practice doing them, seem easy enough ;) Many thanks.