Coyne and his team videotaped the arguments that couples had at home and found that heart patients who were negative with their mates were nearly twice as likely to die within four years as were those who interacted less negatively.
Coyne dan timnya merekam dengan video percekcokan beberapa pasangan suami istri di rumah dan mendapati bahwa pasien jantung yang tidak akur dengan pasangan mereka hampir dua kali kemungkinannya untuk mati dalam empat tahun ketimbang mereka yang lebih akur.