It has often beenpostulated that humorplays apart in emotional well-being. The converse of this should therefore follow: states of emotional distress should be associated with impairment of humor. This study examines the importance of humor appreciation in marital adjustment. Two groups of subjects, one with marital problems and one representing the general population, rated their appreciation oftheirpartner's sense of humor äs well asfilling out the Golombok Rust Inventory of Marital State (GRIMS). It was found that there was less humor appreciation in the distressed group, and that appreciation of partner's humor correlated significantly with the general state ofthe marriage. Failure to appreciate one's partner's sense of humor seems to be a significant indicator of marital distress.The vast majority of research on humor can be divided roughly into three types, depending upon the principal focus. The first is an attempt to understand the dynamics of humor and laughter: what makes us laugh? The second is a search for the correlates of humor, its relationship to intelligence, personality, social group membership, and culture. Third, research has attempted to examine the consequences of humor and laughter: does humor reduce stress, influence attitudes, promote health? In nearly all of this research, individuals are presented with jokes and cartoons, or are themselves asked to produce humorous material, which then serves äs a measure of their sense of humor (see McGhee and Goldstein 1983, for reviews of this traditional literature). Occasionally, people are asked to indicate how they appreciate the humor of someone eise. In the present research, we examine the appreciation of one's spouse's sense of humor and its relationship to marital adjustment.