According to the study, conducted by psychologists at the two British universities, Kent and Liverpool, laughter also increases an endorphin level that is considered part of the body's mood-lifting chemistry.
"This study may have important implications for the way charities or organizations could increase the level of received donations. For example, Comic Relief - which in itself is a worthy event supporting many great causes - demonstrates how laughter can have a tremendous effect on giving," says study leader Mark van Vugt.
"From the perspective of increasing altruism in society, it is obvious that laughter deserves serious attention from both scientists and policy makers," Vugt added.


