Note: The "Better Burger" category is the fastest growth area in fast-casual restaurants today. I found this article (a couple of years old) that helps explain the phenomena in Neuroscience terms.
A quote worth noting: “Digesting fatty foods enhances memory consolidation using the same neural pathway as emotional learning.” - Darya Pino, Scientist/foodie/blogger.
If you've never heard of Five Guys -the QSR Chain that has opened 300+ stores over the past 5 years...start listening...and looking for one. Boasting a "fresh and simple" menu, they are a burger-lover-on-a-budget's version of paradise.
If you are guilt-ridden at the notion of consuming copious amounts of red meat, white flour and starch--washed down with sugary carbonated beverages--take heart! Consuming fats, sugar and caffeine may help (at least for a few moments) you to learn...