A German scientist who found that the “cuddle hormone” oxytocin keeps men faithful by creating a drug-like effect has moved on to testing its effect on moral decision making – and women did not do well. Germans 'cut HIV out of infected cells' (18 Dec 13) A third of HIV cases 'not diagnosed' (29 Nov 13) Hormone makes men 'high on girlfriend' (25 Nov 13) Dr René Hurlemann’s initial research, which was published in November, revealed for the first time that there seemed to be a natural mechanism in people which sees intimacy triggering higher oxytocin levels. The theory comes...