Indulging in a fatty meal after studying for an exam could boost your results. A study in rats shows that eating a certain type of fat produces a hormone that helps the brain cement short-term memories into long-term ones.
via Eat fat to pass exams « Mr. Barlow’s Blog.
Hit up the link for the explanation on what NOT to eat – yeah, a cheeseburger from Maccas won’t cut it, much to your disappointment.