Scroll through any dating app and one wish appears more than almost any other: "You should make me laugh." Before the first date has even happened, the job description assigns your future partner a role: supplier of your good moods. What the Research Actually Says About Laughter and LoveLaughter genuinely matters in romantic relationships—but not in the way the dating-profile phrase implies. And—the pleasant irony—they tend to laugh more with their partners, because shared laughter flourishes precisely where nobody is under pressure to produce it. You are looking for someone to sit beside while the two of you find the world funny together.