A study by researchers from Brown University and Princeton University suggests that taller people may earn more money than short people because they’re smarter. The authors used government data sets that collected the height, weight, intelligence, educational experience, and salaries of people born in the U.S. or the U.K. in 1958 and 1970 from their birth into adulthood. The results of their thorough analysis showed that the people who were tall as kids performed significantly better on cognitive tests. Plus, taller people tended to work in higher paying occupations that required greater intelligence and more advanced verbal and numerical skills. (Here are 10 signs that you’re smarter than you realize). Researchers still remain perplexed by the connection between height and intelligence, but some suspect genetics or early childhood care could play an influential role on the brain.