(Photograph) - Sperm turns: men everywhere can breathe a sigh of relief - sperm counts may not be falling. Rather, say scientists, counting sperm is a tricky business, with apparent declining sperm counts more to do with inaccurate test results than with a decline in male fertility. Now scientists at the University of Sheffield Jessop Hospital for Women have come to the rescue with a novel computer training programme to teach technicians to interpret semen samples better and to improve their counting.