http://www.msnbc.msn.com/id/3077386/

I think laughter is tesla electrical spare change being released throughout the body when a mental reaction produces unaccounted for additional charge. This usually results from sincerity and misunderstanding, often observed, sometimes participated in. This literally tickles the body and we laugh. It's probably electrically like a tree shaking loose a bunch of fruits, and can snowball its own effect with etrained body field conductivities and stimulated neurological pathways similar to those who stay up late. Is being a night-owl prevalent to being funny or having a good sense of humor?