American psychologist, John Gottman completed a series of studies to determine how science could be used to predict whether a marriage or relationship was on the verge of breakup. He recruited newlyweds to his laboratory and instructed them not to speak to each other for eight hours. After the eight hours, Gottman recorded conversations with the couples about their marriage. These conversations were then analysed to pick up on emotions and behaviours. Several years later, the couples were contac