Wouldn't it nice to measure and compare the physiological attributes of candidates during the debates?
From the NY Times several days ago: Mr. Jobs deflected questions both on the company’s financial state, saying that it would report its fiscal fourth-quarter earnings next week, and on his health. He displayed a slide showing that his blood pressure was 110 over 70, adding that questions about his health would cause his blood pressure to rise. (Emphasis mine.) I was thinking about how this would be a cool visual - showing the audience how the speaker reacts to stress.
Then my wife suggested putting monitors on the candidates during the debates. One can say that Obama "won" the affect aspect of the debate because he appeared cool under the pressure of McCain's attacks - even up close and personal. Conversely, McCain lost the affect contest due to his inability to control his body language when reacting to Obama.
Why not put heart rate monitors and blood pressure cuffs on the candidates and see how the candidates' bodies react to stress. If they can't stand the heat of a debate with her/his opponent, how are they going to do when negotiating with a hostile foreign leader or even a hostile branch of government.