<< I agree with the statement, "People are living longer now.". In Japan, the average life span of male is about 75 years and the average life span of female is about 85 years. But only about 400 years ago, the average life span of Japanese was about 50 years. So now we can live about 30 years longer than our ancestors. I think this phenomenon is mainly for two reasons. One is the development of medicine and the other is the plenty of foods. Thanks to the former doctors' and scientists' efforts, medicine has developed very much in recent years. We no longer die of tubercurosis. But as people can live longer, many problems have occured. For example, if you become 90 years old and can not take care of yourself, then, who will take care of you? Is that necessary to live long with doing nothing but lying on the bed? That is a core problem of a recent medicine. What is a life or what is a humanisum? To protect human rights, will doctors need to kill his patients who can not live without morphines? I, for one, think doctors need not kill his patients because in my opinion, doctors don't have to take such an important responsibility. I think doctor is just a job as a businessman or a politician. So he does not have to have the duty to decide to kill people or not. I think this problem becomes more complicated as people live longer. Because if people get longer and don't work, how can the goverment afford money to take care of them? The other reason I think people live longer is their richness in nutritions. As we can eat anything we want, we no longer die of starvation. About 400 years ago, many people died of starvation because they can not eat even minimum nutritions. Nowadays, we eat too much so many people suffer from diabetes mellitus (DM). DM is a disease whose patients suffer from a high glucose concentration in their blood. They can not use a glucose in their body because of a lack of an insulin. Though, these fat people increases, they don't rarely die of DM. Because of the development of the medicine. Finally, as we can live longer, I think the problem is how we live. That is, how we can enjoy our extra times which our ancestor did not have. We can use 30 years extra spans than our ancestors. I doubt if we can spend these extra times effectively. I think this problem, "How we can take advantage of the extra times?", is the theme of our next generations. I believe they can use the time more efficiently than we do.