If you make people laugh too much, their blood becomes - I believe it is acidic as opposed to alkaline. It changes the oxygen level in the blood, and people are likelier to pass out at that point.
Chuck PalahniukEverybody's still miserable in the same way they've always been miserable, and more and more of my friends - especially my male friends - find themselves taking anti-anxiety, psychotropic drugs. It seems like everybody I know is wondering if they're really who they are, or once the prescription runs out, will they become someone different?
Chuck Palahniuk