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...and the reasons why life expectancy increases, there are a variety of factors. Life expectancy is something that is generally aligned with health, well-being and family history. People say that they come from a long line of people who either live long, or die young. They to some extent expect their life course to be more or less related to their family history. But life expectancy is used by social scientists to evaluate the shape that a country is in as well (Rosenberg, 2006). In other words, the concept is more than just a personal attribute. To some extent, it also is telling in respect to the shape of the world. Years ago, people died much earlier because they did not have access to good health care and there were few cures for diseases. In fact, McClatchy (2006) explains that diseases such as Typhoid no longer kills the young, so this can explain why death rates have gone down considerably.
While it is true that people live longer today than they had in the...