WORK ETHIC College students who hold part-time jobs perform better academically than those who either work full time or don't work at all, according to a study by Upromise, a Massachusetts administrator of college-savings plans. The study suggests that working 10 hours a week or less more frequently cuts into nonproductive activities like watching TV than keeps students from their homework. Full-timers, though, are more likely to drop out.
STRESSED OUT Anxiety during pregnancy can double the risk of having a hyperactive child, possibly owing to exposure to the stress hormone cortisol, say researchers at London's Imperial College. Children's behavior is...