How does the difference in partners' salaries affect a marriage or a relationship?

The British University of Bath conducted a study whose goal was to determine how the difference in the amount of monthly income affects the dynamics of a couple's relationship.

As part of the study, the lives of more than six thousand heterosexual couples, who have been married or living together for more than 15 years, were analyzed. Based on the collected data, the researchers came to very interesting findings, and the main one surprised many.

Namely, it is stressful for men when they are the only earners in the household, the research showed. Another interesting fact is that stress increases when the woman contributes more than 40 percent to the household budget, and they are happiest when both earn money, but he is the one who brings more money into the house.

"Generations ago, in many cultures, a man was expected to be the head of the family, the one who would bring money into the home. Masculinity is closely related to fulfilling that expectation. Now that they are faced with a change where once women earn more, men can they feel more stress," said Joana Sirda, who researched this phenomenon.