sciencehabit writes: If you're constantly bundling up against your office building's air conditioning, blame Povl Ole Fanger. In the 1960s, this Danish scientist developed a model, still used in many office buildings around the world, which predicts comfortable indoor temperatures for the average worker. The problem? The average office worker in the 1960s was a 40-year-old man sporting a three-piece suit. But fear not, those for whom the 'work sweater' has become a mandatory addition to office attire: Researchers say they have built a better model.