This study attempted to determine whether humor production moderates m
ood and physiological responses to stress of subjects high and low in
trait humor. Forty subjects who were high and 40 subjects who were low
in trait humor were selected. Half of each group was randomly assigne
d to one of two conditions. In one condition they generated a humorous
monologue and in the other condition they generated a serious monolog
ue to a silent stressful film. Heart rare, skin conductance level, and
skin temperature were taken continuously for the fifteen minutes befo
re, during, and fifteen minutes after the film. Pre- and post-stress m
ood and tension ratings were also recorded. Analyses of covariance wer
e conducted with baseline mood and tension as covariates. Compared to
the production of a serious narrative, humor production led to lower n
egative affect, lower tension, and reduced psychophysiological reactiv
ity for both high and low trait-humor groups. These results suggest th
at humor production may be an effective coping strategy, even for indi
viduals who do nor typically use humor to cope with stress.