Here is an article – like so many – from a journalist who stumbled upon a Laughter Club in Mumbai, India. Read in this particular one the testimonial of participant Mr Sadarangani, 78, who suffered from a brain stroke last year and was bed ridden for weeks but laughter helped him get back on his feet.

“Doctors had cited an extremely slow recovery for me after the stroke. Daily sessions of laughter yoga have resulted in eighty percent recovery which the medics have endorsed to be very speedy,” he exclaimed.

Another man, Gopal Ganguli, 68, had a frozen shoulder which had left him debilitated for years, but vanished in a few weeks, after he began twirling his hands vigorously before exhaling deep breaths while laughing at yoga sessions.

See http://www.dnaindia.com/health/1830762/report-peals-of-laughter-heal-most-ailments