caffeine increases persuasion through instigating systematic processing of the message
Or does it?
Co-author Dr Blake McKimmie says the research suggests that caffeine increases our ability to scrutinise the content of a message.
I don't know about you but I'm getting mixed signals from that article. Maybe the author had a few too many. She even says in the article that
too much coffee, however, means we're more likely to be distracted by peripheral factors, rather than the strength of the argument.