If this question had a simple answer, such as a formula that could be learned, you can be sure that every
comedian would know it! But laughter is a complicated things, and the best explanations of it are still
only theories. We know, of course, that laughter is an expression of many feelings and that laughter is
only found among human beings. It is difficult to decide what really makes people laugh, because each
person will find a different thing funny. It is all down to being individuals. From the physical point of
view, laughter is very good for us. It is good for our lungs, and it is an outlet for some extra energy. So
although no one really knows what makes people laugh, or what the purpose of laughter is, it is a very
good medicine and certainly makes us feel better.