― You knew beer makes you smarter. And now there's science from Chicago to prove it. Cognitive psychologist Jennifer Wiley of the University of Illinois at Chicago found that people with a 0.07 blood alcohol level (BAC) were better at creative problem-solving tasks than those who were not given any drinks. “We have this assumption, that being able to focus on one part of a problem or having a lot of expertise is better for problem solving,” says Wiley. “But that’s not necessarily true. Innovation [...].