For hundreds of years, humans have been dreamt of having a longer longevity. But it is actually not just a dream. Our human beings did achieve this dream and we do have much longer longevities. As a matter of fact, nowadays-average-life-span have increased dramatically with a large number of five years per capita comparing with twenty years ago. From my perspective, the viewpoint listed below may associated with this phenomenon.
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As far as I concerned,the very first reason for this is the improvement of the modern medical techniques. The lack of medicines and clinical facilities directly led to such a high mortality rate in the past. With the development of technologies, more and more medicines and vaccines were invented, so that most of the people who have diseases could be cured in a short period of time, not to mention that we even can use vaccines to prevent a variety of serious infections. Thus, medical improvements truly played a crucial role in extending people’s longevities.
Secondly, boom of the society’s economy also had a great influence on this.Previously, citizens not only lack medicines, but also deficient in money.That means, even if there indeed, say, a variety of medicines already can be bought in the drugstore by money, the fact is, poor people can not afford those pricy medicines! But look at the present situation, with a prosperous economy, everyone is enabled to buy medicines they need.
原文链接：http://www.chaixinzhe.com/three-crucial-reasons-in-extending-peoples-longevities/
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