dr. robert butler. thanks for being here. >> my pleasure. >> these are the babies in the u.s.ern europe. how can that be when we hear so much on obesity on is rise, childhood obesity? >> if you live to be 80, then you may, indeed, live to be hundred. that is what these predictions. the past does not predict the future. just as we did a four minute mile, we're not going to do a two minute mile. >> this study, half of all babies born in 2007 will live to be at least 104. >> right. >> what is happening here? are they going to live healthier lives? >> healthier lives. we've had a decline of disability rates. my worry is obesity and the lack of national health insurance because we have fallen from length place of life expectancy to 42nd. >> that is shocking static. my children could live to be hundred if they continue to be healthy. >> you will be because you have more affluence. >> good willing. but it used to be 11th place and now we're down to had 2, what are we doing wrong? >> we don't have national health insurance and significant poverty and a rise in obesity. we're seeing di