Coffee is the official drink of Science, Technology, Engineering, and Math (STEM), so much so that a new study finds that it's downright Pavlovian. Even the smell of coffee boosts numerical performance. In their experiment
, scholars administered a 10-question Graduate Management Aptitude Test (GMAT - the analytical portion of a computer adaptive test required by many graduate schools) in a computer lab to about 100 undergraduate business students, divided into two groups. One group took the test in the presence of an ambient coffee-like scent, while a control group took the same test - but in an unscented room.