J apan, which is the country with longest life expectancy and the greatest number of centenarians ( people living of 100 years and beyond). It has the most accelerated growth of ageing in the world. In other words, life expectancy in japanese women increased at a steady rate of near 3 months every year for the previous 160 years. Life expectancy of japanese women in 2016 was 87.1 years. In Japan, there is a region that is home to the population with the greatest number of centenarians worldwide : the okinawa island, which exceed even the rest of the japanese in life expectancy. The diet followed by Okinawa people, has attracted the interest of many, because they not only live longer but most of them maintain active lives. In fact, Okinawa is part of the five " Blue Zones ", which comprise populations with the world's longest lived people and the lowest risk of age-associated diseases. Okinawa is the largest of the Japanese Ryukyu islands, where the traditional diet is ve...