Today, there are laughter clubs around the world. they try to improve people's heaith with laughter. the laughter clubs started in lndia. now they are all around the world. there are more than 450 laughter clubs just in lndia. all kinds of people join a laughter club. they go once a day for 20 minutes and start to laugh. there are no jokes. people laugh as a kind of exercise, and everyone feels better afterwards. some people pay a lot of money to join a laughter club and just laugh.