Resumen de Graveyard shift
Many people involved in global markets log on outside normal office hours. And yet more simply keep beavering away long after the sun goes down: grueling hours are a point of pride in some professions. That might be good for the economy, but its not good for the health. Some sleep researchers fear that people are heading for an epidemic not just of fatigue, but of killer diseases. Here, O'Callaghan tackles some hazards that are aggravated by fatigue.
