Conclusion
cancer, sleep disturbance, fatigue, pain
CANCER
This trial showed that a structured laughter yoga intervention program in a hospital setting delivered by trained instructor for 20–30 min each week for four weeks before chemotherapy effectively improve health-related quality of life of the cancer patients undergoing chemotherapy. This intervention showed enhancement of emotional functioning, improvement overall health and quality of life, and mitigation of fatigue, pain, and sleep disturbance symptoms. Many patients could be benefitted if laughter yoga is incorporated as a complementary therapy in routine clinical care practice.