HI all, I have not read the original article, but it sounds like statistically, it could very well be that for most people sampled in the research study, there was a negative correlation--the more caffeine, the less tinnitus. Some of us may experience the opposite of what was reported in the article, but it doesn't change their results or necessarily mean their research is flawed--it goes back to that saying "...predict most of the people most of the time, but not all of the people all of the time." Our experiences with AN --treatment and recovery--are quite varied. I think it's worth 'experimenting' with how much and what type of caffeine seems optimal post AN treatment. I used to love a couple small cups of espresso pre-surgery. Now I don't like the taste so much. I now drink a few small cups of chai! Thanks--Seandimom