This  theme is interesting for me. It is said that Japanese has long life expectancy, so this time was good opportunity to think about the reasons. According to the article , there are five factors to live to be 100; genes, outlook, diet, exercise, an active mind. Since I go to Keio University, I rarely exercise. That is why this was good cue to think how much I exercise. Although I probably can’t play sports every week, I was encouraged to stretch sometimes at least. As for diet, I remembered a food lifestyle councilor once said to me that meat, fish, beans, and eggs are especially important for me to be powerful. Of course, developments in medicine and welfare are strong factors. Antibiotec drugs and social services for challenged people and elderlies are richer than ever than before. Generally people in developed countries live longer than advancing countries for many reasons.