Social scientists first started studying marriages by observing them in action in the 1970s in response to a crisis: Married couples were divorcing at unprecedented rates. Worried about the impact these divorces would have on the children of the broken marriages, psychologists decided to cast their scientific net on couples, bringing them into the lab to observe them and determine what the ingredients of a healthy, lasting relationship were.
Was each unhappy family unhappy in its own way, as Tolstoy claimed, or did the miserable marriages all share something toxic in common?
Psychologist John Gottman was one of those researchers. For the past four decades, he has studied thousands of couples in a quest to figure out what makes relationships work. I recently had the chance to interview Gottman and his wife Julie, also a psychologist, in New York City. Together, the renowned experts on marital stability run The Gottman Institute, which is devoted to helping couples build and maintain loving, healthy relationships based on scientific studies.