I don't know why I go to extremes

Bob Barr, Libertarian Party Presidential Candidate, and the man who might win Georgia for Barack Obama, drinks five shots of espresso with steamed half-and-half five three times a day. This has been reported in numerous pieces on him, which suggests that either his campaign wants that information out there or journalists, correctly, view it as a good detail to liven up their pieces. I am interested in a medical perspective on the effects of this upon the average fifty-nine year old American male, though not interested enough to look it up.