There are several factors that go into making a relationship work and many things can cause a relationship to fall apart.
A new study from the University of Chicago says there might be one thing that matters above all else as couples enter their golden years.
A husband with a positive attitude and in good health may be the most important factor in maintaining a happy relationship.
The study's participants were between the ages of 60 and 90, who have been together for an average of 40 years.
The study was about analyzing conflict. That doesn't mean fighting necessarily. Just things like a partner being overly demanding or too critical.
The participants were asked to describe their partners and women who say their husbands had a positive attitude and were in good health reported less conflict in their marriage.
Interestingly, even if the woman was in poor health, men didn't report higher-than-usual conflict levels. That led researchers to believe that it's the mens' health and attitude that are the most important.
In situations were the man was in poor health or he had a bad attitude, both sides reported more conflict.