nbc news health and diet editor madelyn fernstrom and to back her up in all of these things is david pryorught in the big guns today. >> yes, indeed. >> when you feel terrible, often you don't feel like eating. that's how i get sometimes. >> that's hard. you have to listen to your body. the most important thing is fluid, especially when you have a fever. water is go-to but a lot of people don't like that. dunk fruit in it, have some juices, go for a sports drink, it has salt, because of the salt and water balance. fever, your body is fighting this off. hot or cold is your own preference. might go with a popsicle, be cooled off. maybe go with hot soups. have some tea, chicken soup. chicken soup does have some immune fighting properties. but it is really important. >> they say feed a cold, starve a fever. >> i always get confused. >> we don't go with that anymore. the key is staying hydrated this time of year. the fever is a natural response of the body to infection. we try to stay hydrated, it makes a difference. >> can you have too much of the gate ride type drinks. one time i didn't feel

senator mike pryor's father david was also a senator who started running for office nearly a half centuryghts for a third term, keeping the democratic dynasty alive won't be easy. republicans have high hopes here. the party needs only six seats to win control of the senate. >> i don't want to be cocky. i have a hard race. i completely understand what i'm up against. >> reporter: he's up against tom cotton who republicans see as a rising conservative star. >> i'm good. good to see you. >> reporter: after seven months as a congressman, you announced you were running for the senate. some said you're in a hurry, are you? >> i would say i am in a hurry. i have been in washington for a year now and see a lot of problems that need to be fixed. >> reporter: you have been called one of the new faces of the "hell no" caucus. >> i would like to say yes. but if the president continues to propose higher taxes and more spending then i will be saying no. >> reporter: cotton grew up on a farm in central arkansas. it seems as if he's been preparing for this moment all his life. two harvard degrees and two

but it's a fun book because i had a very good ghostwriter who worked for "the daily show," david pryor, whose right in the back there. it is a good read, a fun read. this is what i am doing now. i'm teaching, writing books, consulting. people are paying me to give my boring speeches. >> host: and a future for political office for you? >> guest: you never say never. not for now. i am happy when i'm doing as a private citizen. >> host: how to use number would approach the north koreans? >> guest: you use homer to make the other side ids. most dictators therefore are. they try to intimidate you. there have been times where a kid somebody about their reputation. you're a guard torturing people. where do you cut all the fingernails off for people? generally come you make the menus. they laugh a bit. it's all about connecting with the other side. >> host: "how to sweet-talk a shark" is the name of the book. you are watching tv on c-span2. >> recently, nielsen bookscan which tracks over 85%. these are flexors from december 31, 20 of 12 to december 8, 2013. the former reagan administration off