dr. kevin campbell. >> thanks for having me, gerri.erri: are you guilty of hitting up your favorite pizza place or forgetting to fill that all-important prescription. some hospitals are starting to use detailed consumer data to see which patients are more likely to get sick? why are they doing this? patient privacy rights founder dr. debra peel. welcome back to the show. we talked about this before, now it seems like the big medical institutions really digging deep and looking at all the details of your life. what are the kinds of information that they're poring through to understand what the physical problems might be? >> they're poring through everything, gerri, from what you buy in the grocery store to how often you wear your fitness app to all kinds of financial information. who you write your checks to? they're poring through our entire lives. gerri: you put it well. give you a couple examples of the kind of data they might look at. hospitals, medical centers. and you tell me how they might use it. frequent fast food purchases, wh

dr. kevin campbell grew up watching the $6 million man. says the world caught up to the tv show.eally? >> absolutely. it is amazing the time we live in now is one of the most exciting times in history for technology and science and medicine. we are able to provide things for patients that wouldn't be true. >> one of the things is a 3-d printer, how they can make a gun or other nonliving things, but the next thing is replacing organs. printing organs. >> it is the same technology instead of an ink-jet printer. there are other organic compounds and a computer generate the three-dimensional image. this has been accomplished already in children woborn witht a windpipe. three dim me thinknal tracheas implanted in these children. these children are doing as well now. we will be able to serve patients who normally may die waiting on a transplant list. >> which is about 18 people today most waiting for kidneys. >> make forest they learned how to print new skin cells using 3-d printers. instead of different ki-- you he to have enough to him there would be skin dwrafts so then you have mul

dr. kevin campbell says the world caught up to the tv show, really? >> absolutely.t is amaze the time we live in now is one of the most exciting times in history for science and technology and medicine. we're able to provide things for patients that we'd never imagine will be true like on the six million dollar man. john: and one of the biggest new things is the 3-d printer, and i get how they can make a gun or other nonliving things, but the next thing is replacing organs? printing organs? >> exactly. it's amazing technology. it uses the same technology as an ink-jet printer. we have a matrix of skin cells and organic compounds and the computer generates this three dimensional image that's a living organ. this could solve so many problems in medicine with organ shortages for heart transplants and kidney transplants and the like this. has been accomplished already with children born without a windpipe and three dimensional tracheas that are implanted in the children and doing well now. we'll be able to serve patients who normally may die waiting on a transplant list

dr. kevin campbell, assistant professor of medicine at the university of north carolina has some ideas.to the show. so, really? i can't, marathon and eating a hamburger, they're comparable? how so? >> i really don't think that is accurate. eating a hamburger has lots of fat and calories and it is just not very good nutrition for you. running a marathon can be a great thing for your health, but, it can also be detrimental if you overdo it just like with most things folks enjoy. gerri: are there limits how much you should run and still stay safe? s >> this new data, this new research looked how much is too much. the number they came up with, if you're running more than 30 miles a week, you probably may be running too much. these folks were shown to have higher rates ever heart disease and plaques in the heart arteries. gerri: okay, i'm safe. i'm not running more than 30 miles a week. i'm finally doing the right thing! but so, if it is 30 miles a week, about that is really the limit why are some people getting sick? they think they can eat anything because they're exercising so much? >> i