Okay, so maybe like usual Susan has tried to avoid talking about Ivanchuk and instead emphasized the use of drugs to enhance chess skill. It seems that Susan discovered an experiment with beta- blockers and she even throws in her comments on caffeine.

I can't honestly take this to be Susan's opinion as she's in Hungary and probably the article was posted by an admin but even if it is her true opinion its not a contrary one to my own. Actually, there isn't much opinion in the article at all ... strictly facts and research. You should take a look at the article and form your own opinion accordingly.