Laughter yoga (Hasyayoga) is a modern exercise involving prolonged voluntary laughter. This type of yoga is based on the belief that voluntary laughter provides similar physiological and psychological benefits as spontaneous laughter. It is usually done in groups, with eye contact and much playfulness between participants. Intentional laughter often turns into real and contagious laughter.
Laughter yoga was popularized by family physician Madan Kataria who modernized and simplified the work of earlier laughter pioneers,  who taught very similar concepts starting in the 1960s. Kataria wrote about his experience in his 2002 book Laugh For No Reason.
The yoga is performed without any humorous reason to laugh, with one practitioner observing that "the mind does not know that we’re faking it."
Laughter yoga sessions may start with gentle warm-up techniques which include stretching, chanting, clapping, eye contact and body movement, to help break down inhibitions and encourage a sense of playfulness. Breathing exercises are used to prepare the lungs for laughter, followed by a series of ‘laughter exercises’ that combine the method of acting and visualization techniques with playfulness. Laughter exercises are interspersed with breathing exercises.
A 2018 review concludes that group interventions based on laughter Yoga improved depressive symptoms over the short term, but there is no good quality evidence to assess that laughter yoga is more effective than other group-based intervention.
A 2019 review and meta-analysis in the field of laughter-inducing therapies suggests that they are more effective than humorous laughter and can improve depression. However, the quality of the evidence was low.
A meta-analysis published in 2020 concludes that laughter yoga has no adverse effect and could have benefit for older adults in terms of physical function (blood pressure, cortisol level, sleep quality) and psychosocial health (life satisfaction, quality of life, loneliness, death anxiety, depression, mood, happiness). Seven publications were included in this meta-analysis, selected on a base of 3210.
See also edit
- Gendry, Sebastian (2014-05-17). "Laughter Therapy History: Who, What, When". Laughter Online University. Retrieved 2019-10-12.
- Kataria, Madan (2002), Laugh For No Reason (2 ed.), Mumbai, India: Madhuri International, ISBN 978-81-87529-01-9
- "Laughter Yoga: Relaxing, If a Bit Kooky". NPR.org. Retrieved 2019-04-21.
- Kanigel, Rachele (25 October 2007). "How Laughter Yoga Heals, Plus 6 Fun Exercises to Try". Yoga Journal. Retrieved 2019-04-21.
- Wilson, Mary (23 June 2016). "Finding focus, relaxation and improved health through Laughter Yoga". ABC News 10. Retrieved 27 June 2016.
- Bokur, Debra. "What's So Funny? Yoga Journal". Yogajournal.com. Archived from the original on 2013-09-21. Retrieved 2013-08-02.
- Bressington, Daniel; Yu, Clare; Wong, Wandy; Ng, Tsz C.; Chien, Wai Tong (2018). "The effects of group-based Laughter Yoga interventions on mental health in adults: A systematic review". Journal of Psychiatric and Mental Health Nursing. 25 (8): 517–527. doi:10.1111/jpm.12491. PMID 30030938. S2CID 51704601.
- van der Wal, C.N., Kok, R.N. (2019). Laughter-Inducing Therapies: A Systematic Review and Meta-Analysis. Social Science and Medicine, 232, p473-488. (open access). https://doi.org/10.1016/j.socscimed.2019.02.018
- Kuru Alici, Nilgün; Arikan Dönmez, Ayse (2020-11-01). "A systematic review of the effect of laughter yoga on physical function and psychosocial outcomes in older adults". Complementary Therapies in Clinical Practice. 41: 101252. doi:10.1016/j.ctcp.2020.101252. ISSN 1744-3881. PMID 33217706. S2CID 227102747.
Hasyayog Guru Jiten Kohi (May 2008) written book "Hasyayoga Vigyan" published in Hindi vide ISBN No. 978-81-906189-0-8 Hasyayog Guru Jiten Kohi (September 2008) written book "Urja Ke Panch Stort aur Hasyayoga" published in Hindi vide ISBN No. 978-81-906189-1-5 Hasyayog Guru Jiten Kohi (December 2010) written book "Hasyayoga Sanhita" published in Hindi & English vide ISBN No. 978-81-906189-6-0