In this study, conducted at the Indiana State University Sycamore Nursing Center, 33 healthy adult women were divided into two groups. The treatment group watched a humorous video, while the control group viewed a tourism video. All participants completed questionnaires regarding their stress and humor levels before and after watching their videos. In addition, blood drawn before and after treatment was tested for natural killer cell levels.
Compared to the control group, the laughter group reported a significant decrease in stress following treatment. Their stress level appeared inversely correlated with their level of mirthful Laughter. Participants with high scores on the humor questionnaire also had significantly higher numbers of natural killer cells after treatment.
The laughing participants?
Natural killer cell levels were significantly higher than those of the control group too. Continue Reading »
