Don't be sad. The abstract for the large-scale study itself concludes that there are too many interlocking relationships to reach a definitive conclusion. From

Don't be sad. The abstract for the large-scale study itself concludes that there are too many interlocking relationships to reach a definitive conclusion. From Dr. Howard Friedman's other research (evidence humor and its underlying personality characteristic may be more good than bad for life satisfaction): "Results indicate that emotionally expressive, extraverted, and physically attractive Subjects were evaluated more favorably in these initial encounters than were Subjects scoring low on these dimensions. The relationships between expressivity/extraversion and initial likability were independent of the effects of physical attractiveness. Results suggest that conceptions of overall attractiveness need to move beyond the physical qualities to include dynamic, emotional aspects." And: "Two groups of Type A's were found: one that was repressed, tense, and illness-prone, and another that was healthy, talkative, in control, and charismatic. Furthermore, in addition to the expected healthy Type B's, a subgroup of Type B's was found who were submissive, repressed, and tense; had an external locus of control; and may have been illness prone." http://www.faculty.ucr.edu/~friedman/nvcabstract.html http://www.faculty.ucr.edu/~friedman/nvcabstract.html http://www.faculty.ucr.edu/~friedman/longabstract.html http://www.faculty.ucr.edu/~friedman/longabstract.html