Researchers found that those couples who tease each other have the strongest relationships. It was discovered over the course of 39 studies that involved over 15,000 people and lasted for more than 30 years. But there are two things to keep in mind when applying this strategy, or else miscommunication could occur. The first is that it is important that the couple have a shared sense of humor. One of the researchers, Hall, noted that humor is a wide concept, so not everyone has the same idea of what is funny.