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If you're having trouble focusing on a finicky task at work, you might consider changing the background colour on your computer screen instead of downing yet another cup of coffee. The colour red can boost the brain's attention to detail, according to new research from the University of British Columbia's Sauder School of Business published yesterday in the journal Science. Blue, on the other hand, is the colour to choose when creativity is a priority, says Juliet Zhu, an assistant professor of marketing, who led the study.