There are various factors to explain why the communities now own a better quality of life. To begin with, a comprehensive health care system plays a vital role in enhancing people’s life span. In the past, if a person was sick, it was extremely for him to acquire medicine to treat his disease. By contrast, it is very easy to access health assistance in the current society. Moreover, advanced technology also provides a series of benefits. For example, there is plenty of transportation that we can apply. Therefore, travelling around the world is no longer a mission impossible. Instead, it only costs us a few hours to visit any country.