why we laugh?

wen we are happy

I think we laugh simply when we find anythimg makes us ammuse,happy and sometimes funny

That's another mystery of the human body. We haven't been able to really pin point on why we really laugh and how it is caused.

Because we think that ,all things around us very interesting!~

Laughing is a physiological reaction you go through when you encounter some thing funny or some other emotions. Laughter is regulated by your brain. Aristotle said we laugh at inferior or ugly individuals, because we feel a joy at being superior to them. Socrates was reported by Plato as saying that the ridiculous was characterised by a display of self-ignorance. Schopenhauer wrote that it results from an incongruity between a concept and the real object it represents. Everybody has got their own theory I guess.

we laugh because we are happy.