We have some very healthy areas in the U.S. but after reading Dr. Nishant’s article on the Blue Zones I started to wonder why we don’t have more (areas where the population often lives past 100). There are many regions in this country where obesity is low and people are very active. Wait a second, I thought, could that be it: activity? While a great majority of Americans don’t get enough activity and suffer from chronic diseases and obesity, the other end of the spectrum is comprised...