The division of the invisible work needed to run a household appears to be more closely linked to women's relationship satisfaction than the division of tasks such as cooking and cleaning. This is suggested by research comprising two studies of heterosexual relationships, published in Personality and Social Psychology Bulletin. Women reported greater satisfaction with their relationships and sex lives when their male partners were more involved in organisation and emotional care. For men, by contrast, greater relationship satisfaction was associated with women taking on more of this burden.
The researchers use the term "mental load" to describe the management of family life beyond physical tasks. It includes cognitive work, such as anticipating needs, scheduling appointments and organising daily life, as well as emotional work, such as recognising a partner's distress and defusing tensions. Unlike a task that gets completed, these responsibilities often have no clear beginning or end. Remembering what is missing from the fridge or keeping track of a child's school schedule can occupy someone's mind at any time.
The team, led by Verena Klein of the University of Southampton, initially examined 452 women in the United Kingdom who lived with a male partner. Their average age was about 42, and around 55% had at least one child. Participants answered questions about the division of household chores and the mental load, their views on gender roles, and their satisfaction with their relationships and sex lives. The team developed a 17-item scale, separating responsibilities relating to the home and the couple from those relating to children. The design and planned analyses of this study had been preregistered.
In the first study, men's greater involvement in the relationship's mental load was linked to higher satisfaction among women, but the correlations were moderate to small: 0.24 for the relationship and 0.15 for their sex lives. Emotional care was linked to sexual satisfaction, while purely organisational tasks showed no corresponding association. When the mental load, physical chores and views on gender roles were examined together, only the mental load remained statistically associated with both forms of satisfaction. However, its association with sexual satisfaction was no longer statistically significant when overall relationship satisfaction was taken into account.
The second study included 156 couples living together in the United Kingdom and the United States, with an average age of about 38 and an average relationship duration of 13 years. This time, both partners responded, allowing the researchers to examine how each person's reports were linked to both partners' satisfaction. Men and women agreed that women took on more household chores and an even larger share of the mental load. The inequality was greatest in responsibilities for children and smaller in physical chores. The second study had not been preregistered.
In the couples' data, women reported the greatest satisfaction with their relationships and sex lives when the relationship's mental load was shared equally. Men reported greater relationship satisfaction when women took on more, but greater sexual satisfaction when their partners described an equal division. Klein clarifies that this does not prove that men consciously prefer inequality. For the parenting mental load, both sexes reported higher relationship satisfaction when they believed their partner did more and when their partner believed the respondent did more. No corresponding association with sexual satisfaction was found.
Another finding was that women's egalitarian views did not explain who took on the mental load. Traditional views were associated with a more unequal division of physical tasks, but were not associated in the same way with invisible management. According to Klein, a woman may reject conventional gender roles and still end up responsible for planning and care. Beliefs in equality, therefore, do not automatically translate into equal day-to-day practice.
The results need careful interpretation, as the studies collected responses at a single point in time and do not prove causation. Couples who are already more satisfied may communicate better and share responsibilities more fairly. In addition, satisfaction was measured using one question for each area, the new mental load scale needs further validation, and weekly hours of paid work were not recorded. Geoff MacDonald, a professor of psychology at the University of Toronto who was not involved in the research, points out that the scale may also capture a partner's broader responsiveness and reliability. He also suggests examining other sources of ongoing worry, such as finances and planning repairs.
Klein suggests making these responsibilities visible as a practical first step: who notices that something needs doing, who remembers it and who makes sure it gets done. If one person constantly has to remind the other about chores, they are still taking on part of the mental load, even when the tasks themselves are shared. However, the researcher stresses that there are not enough longitudinal data to know whether this inequality is declining across generations. Following couples over a longer period could show whether changes in the division of responsibilities precede changes in satisfaction.
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