Moving in with a partner after age 50 produces a measurable boost in life satisfaction, but getting married on top of that doesn’t add any additional happiness gain, according to a peer-reviewed University of Vienna study published in the International Journal of Behavioral Development.
Researchers tracked 2,840 adults ages 50 to 95 using long-term data from the U.S. Health and Retirement Study, comparing changes in life satisfaction and depressive symptoms as participants started new relationships, moved in together, or married.
Key Points
- Cohabitation is linked to a significant rise in life satisfaction for adults over 50, according to the University of Vienna’s summary of the findings.
- Marriage itself added no measurable additional well-being gain for couples who were already living together, researchers found.
- “The marriage itself does not offer any measurable additional gain in life happiness for couples who already share a table and a bed,” said lead researcher Iris Wahring in the university’s release.
- The study found no gender differences in how much happiness people gained from a new live-in partnership.
- Breakups among adults over 50 weren’t associated with a measurable decline in well-being, pointing to emotional resilience later in life.
Wahring, describing what appears to drive the effect, said the well-being boost comes from partnership itself rather than its legal status. “Our results show that the bonus for well-being is already achieved by sharing a life together in a partnership,” she said, according to the university’s release.

The research, also covered by Phys.org, draws on decades of Health and Retirement Study interviews that follow the same individuals over time, letting researchers isolate what changes around a specific relationship transition rather than comparing different people at a single moment.
Wahring cautioned the findings describe group-level patterns, not a guarantee for any one couple. “These are statistical averages,” she said. “While the group of people who move in together benefits overall, individual experiences can of course vary.”
The project brought together researchers from the University of Vienna along with collaborators at Humboldt University Berlin, the University of British Columbia and Stanford University. Their summary of the work states plainly that “moving in together is more decisive than legal status” when it comes to predicting who gets happier after a new relationship begins later in life.
The study adds to a growing body of research on relationships formed later in life, as more adults over 50 separate, remarry, or choose long-term cohabitation over remarriage after divorce or widowhood.

