Interracial marriages diminish the positive effects that a relationship provides. For virtually all races and genders, marriages within the same race have a better effect on psychological well-being. The exception is negroid women, who are happiest in relationships with other races, and significantly so. White women with negroid men almost lose the psychological benefits of the relationship, and likewise negroid women in relationships with negroid men have a psychological state like single people. That is, relationships with negroid men for women of any race do not provide the benefits of a relationship. Interestingly, already negroes in relationships with white women show an extreme tendency to have a bad mental state, depression. Their mental state in a relationship with a white woman is much worse than in a control group of single people. In another news item there are results that 92% of black men abandon the white mother of their child shortly after giving birth, which fully matches the results of this study.