If you're going to make an important decision in the near future, you might want to drink a lot of water first. A new study shows that people who really, really have to pee actually make better long-term decisions, the Atlantic Wire reports. Study participants either drank a lot of water or just a little, then answered questions comparing short-term rewards (for instance, a $16 handout tomorrow) and long-term rewards (or a $30 handout in 35 days). Those who had a full bladder were more likely to hold out for the bigger reward, according to the press release. (More decision stories.)