IANAD, so I’m not sure how to phrase this properly, but here goes:
Just like the brain receives a signal that the genital cells are in an orgasmic state (when we are having an orgasm), is it possible for it to receive a signal (via chemical or electromagnetic means) that the cells in the entire body are in an orgasmic state, or does there need to be some feedback mechanism with the cells to get to this state (and only genital cells have this particular feedback mechanism)?
e.g. is it at all possible to fool the brain into thinking your elbow is coming?
Would a Total Body Orgasm be too much for the brain/heart to handle?