Thanks sweety, even in the laughter clubs the time of laughing is much prolong, so do you expect that these personalities also having some different trouble as 'stated, stomatch trouble', ? but I don't think that the prolong laughing in the laughing clubs creates any problems to the participants, some of having those experiences might be. The empty stomatch laughing is not that best for the health, because if the stomatch is empty one can experience a sort of disturbance and due to this he or she cannot laugh with the mind, if they are laughing that laugh is not indicate that they are laughing by their mind and heart.

sunil