dr. michael roizen. doctor, thank you very much for your insight. ave studied this drug extensively. when we hear the piece and see what just happened, was he getting a good night's sleep from this, michael jackson? >> we actually don't know the answer to that question. this would be a new use of an old drug. no one has ever studied it as, quote, a sleep aid, because it has to be given into an i.v., or into a vein. and it's the blood level in ur brain that actually causes you to go to sleep. there is one or two indications that it may be better than a lot of other drugs because, in fact, people wake up more happy or happier. they don't wake up with nausea. and there is a little euphoria, in a small percentage of people. but it's never been studied to say whether this is actually a better, quote, sleep aid. but it's just so unlikely to use it this way. >> and you said you're courting disaster when you use it that way. >> right. you saw in the piece that he became apnic. didn't breathe himself for a period of time. 30% to 40% of people if they get just