• Laughter can reduce levels of the stress hormone, cortisol (Berk et al ,1989, Bennett et al, 2008). Studies have also shown laughter increases levels of oxytocin and also melatonin (Bennett et al, 2003).
  • Students were more likely to recall a statistics lecture when it was interjected with jokes about relevant topics (Garner, 2006).
  • Laughter yoga was first introduced into schools in India in 1998. One school even has a dedicated ‘laughter master’. Teachers are reporting that students are more engaged, willing to learn and creative (  


  • Bennett, M. P., Zeller, J. M., Rosenberg, L., & McCann, J. (2003). The effect of mirthful laughter on stress and natural killer cell activity. Nursing Faculty Publications, 9.
  • Bennett MP, Lengacher C. Humor and Laughter May Influence Health: III. Laughter and Health Outcomes. Evidence-Based Complementary and Alternative Medicine, March 2008.
  • Berk, L. S., Tan, S. A., Fry, W. F., Napier, B. J., Lee, J. W., Hubbard, R. W., … & Eby, W. C. (1989). Neuroendocrine and stress hormone changes during mirthful laughter. The American journal of the medical sciences, 298(6), 390-396.
  • Garner, R. L. (2006). Humor in pedagogy: How ha-ha can lead to aha!. College Teaching, 54(1), 177-180.


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