Revealed! The Secret of Japanese Longevity

Japan has the greatest life expectancy of any country in the world, clocking some 82.6 years on average (and a whopping 86.1 for the womenfolk!) compared to a paltry 78.2 (plus a two-and-a-half-year lady dividend) for Americans. A number of theories have been floated to explain these numbers, including a diet heavy on fish, vegetables and rice; plenty of exercise; sake sipping; genetic luck …