classics, for instance, we learned that -- p;lavex, for instance, we learned that for up to a third of the population that will let you very much for. over time, general interest and understanding and the way this revolution coming from the study of the genome can include the opportunity for human health. that is what the book is about. >> so you switch because of your genetic profile? >> i found out that i am at a higher risk of diabetes than the average person. i was surprised. i do not have a family history of that. but all of the people in my family have been quite lean. when i discovered this, i was little less lean. as a conen