University of Basel Mar 9 2026 When the days start to get longer again, Dr Christine Blume's phone rings more often. That's because journalists want to ask the sleep researcher what spring fatigue is all about. Until now, she has always replied that there are no studies that have investigated this phenomenon. "But I always found that unsatisfactory," says Blume, who is a researcher at the Center for Chronobiology of the University Psychiatric Clinics (UPK) and the University of Basel.That's why