dr. robert silverman's office in westchester. ideally a person should snooze for about seven hours a night. not for and certainly not three hours. >> the brain needs sleep. needs rest and clearly if you are sleeping two, three or four hours like some of the candidates indicated that's not ample. as a matter fact your brain needs to shrink and it needs to detox so it needs to shrink in size and go back to a smaller size. >> i asked him how much do you sleep? he said about five and i said maybe he should take your medicine then. it was a joke. >> i would have said it seriously. >> if you take a look at all the candidates schedules this election season it's easy to see their days are anything but easy. which leads doctors olbermann to think they'll have sleep deprivation? >> when you are white you don't know what it's like to be poor. what i meant by that is --. >> it's a different kind of calculation and we didn't lose a single person. >> i also interviewed randall pinkett who is a 2005 winner of eight -- while he agreed that donal