Medical research has found that happiness has a strongly beneficial effect on health. The healing properties of 1LAUGH such that humour is now being used alongside more 2TRADITION courses of 3TREAT in some hospitals. In a London children’s hospital, for example, two clowns are provided for the 4ENTERTAIN of patients. Doctors say that these clowns are 5SUCCESS in making the children feel better. It seems that when we laugh, there can be a 6REDUCE in both blood pressure and the amount of 7TENSE in our muscles. Although it is 8POSSIBLE to prove it at the moment, this may also mean that people who feel unhappy and who are, therefore, unlikely to laugh so much, suffer more often from physical illness.