LY does wonder in a pain management program
Dr Topher Stephenson, who specializes in physical medicine and runs the spine program at Mercy in Sacramento, says laughter yoga promises to do for the psyche what bikram yoga does for muscles.
Psychophysiology: Just The Expectation Of A Mirthful Laughter Experience Boosts Endorphins
Not only is there real science and psychophysiology, but just the anticipation of the "mirthful laughter" involved in watching your favorite funny movie has some very surprising and significant neuroendocrine/hormone effects.