One-third of Britains young professionals are hung over at least two workdays each week, according to a survey released this week. Two psychologists polled more than 500 upper-class young professionals, asking how drinking habits affected their work. Two-thirds of those surveyed said they had called in sick due to alcohol at least once in the previous month. Harry Briggs, who conducted the survey as marketing research for a new hangover cure, said that the Oxford and Cambridge graduates are a hard-drinking crowd. Its considered daring to see how much you can drink, Briggs said, and still make it to your desk in the morning.