Another Reason to Avoid Fast Food: Bad Financial Choices

If "Super Size Me" wasn't enough to turn you off to fast food, consider an intriguing new study by researchers at the University of Toronto. They find that consumers who have fast food on the brain become more impatient -- in one case, too impatient to wait for a delayed, but larger monetary payoff.

The study, to be published in a forthcoming issue of Psychological Science, primed participants by flashing fast food logos, including McDonald's golden arches and KFC's colonel, on a computer...