Based on this study, all of us hop heads out there should be developing a higher level of thinking. Now it may take 2000 liters per day to ever see any benefit though.
http://seattle.cbslocal.com/2014/09/30/study-main-ingredient-found-in-beer-can-help-improve-memory/
http://seattle.cbslocal.com/2014/09/30/study-main-ingredient-found-in-beer-can-help-improve-memory/