Here is a video that tells the story of Jacqueline Domhoff who chose to see her cancer as an opportunity to heal her mind, and Laughter Yoga as a tool to help her do that.
[...] Dr. Charles Schaefer, of Fairleigh Dickinson University, said he’s not surprised that laughing yoga has caught on. He studied similar laughter and found that people who laughed heartily, for no reason and for just one minute, had a significant increase in mood. “I don’t think the body cares what the stimulus is, as long as you do that with hearty laughter,” Dr. Schaefer said.
Two women are planning to set up laughter clubs in Zimbabwe, one of the world's most challenging economies.