It turns out, which isn't too surprising, that having a laugh with your partner is a good indication of the well-being of your relationship. 

A study that was published in the Personal Relationships journal tested 77 couples who had been in a relationships for an average of four years. 

During the study, psychologist Laura Kurtz asked the couples to describe how they first met and Laura and her team looked out for signs of spontaneous laughing. They measured how often and for how long each couple laughed together during the testing.

Following this, each couple filled out a survey explaining their satisfaction and their closeness in the relationship and Laura explained that "In general, couples who laugh more together tend to have higher-quality relationships.”

The psychologist then explained that "We can refer to shared laughter as an indicator of greater relationship quality.”

So it turns out as long as couples laugh together, they are sharing moments that strengthen their relationship as “moments of shared laughter are potent for a relationship. They bring a couple closer together.” 

Who new a good joke was so important?