
This seminal book by Dr. John Gottman and Nan Silver outlines the findings from the 'Love Lab' at the University of Washington. It details the behaviors that predict relationship success versus failure. The book introduces the concept of the 'Four Horsemen'—criticism, contempt, defensiveness, and stonewalling—and provides actionable exercises for couples to build 'Love Maps' and maintain healthy interdependence.
This is largely the work of the Gottmans. It's actually a husband and wife team up at the University of Washington in Seattle. And they've identified what are called the four horsemen of relationships.
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"Andrew Huberman discusses the work of 'The Gottmans' from the University of Washington, specifically citing their research on the 'Four Horsemen of the Apocalypse' for relationships. This book is their most famous and relevant work regarding these specific concepts."