
Lee Berk, DrPH, FACSM, explains the healing effects of laughter.
Berk on NBC: the healing power of laughter
By Brian Weed
Dr. Berk's laughter research has once again gained the interest of national media.
On Friday, April 13, 2007, Berk was interviewed on NBC's Today Show.
His findings show that endorphins are released when the body laughs--either by forced, or fake laughter, or by spontaneous amusement--it does not know the difference.

