社会学者的研究发现，虽然离异的可能性贯穿于婚姻的始终，但有四个时期是危险性最大的。第一个危险期：孩子出生时夫妻两人的压力骤然加大，原来的嬉戏和娱乐大大减少，性生活质量下降。孩子到来所产生的“三角”关系，改变了原来的“两人世界”，夫妻对婚姻同时感到紧张、困 Sociologist’s research found that although the possibility of divorce throughout the marriage always, but four periods is the most dangerous. The first dangerous period: when the child was born, the couple suddenly increased pressure on the two, the original play and entertainment greatly reduced, decreased quality of life. The “triangular” relationship created by the arrival of children changed the original “two-person world,” and the husband and wife felt nervous about the marriage at the same time.