▶ Your Answer : One of the changes brought about in 21 century is yhe extended life expectancy, likewise, there's been a lot of accounts and debates as to the cause of this phenomenon. Some may argue that it's because of the way people live, with more comfortable house and condition,while it's true, I believe more convincing answer can be found in mainly advancement of medication and agriculture.
To start with, it's no secret that people long time ago used to get killed by what is considered minor symptom from today's standard such as malaria or food poisoning. With advent of vaccines and a numerous preventative medications, we now can deal with those once considered to be lethal with ease. One promising evidence can be seen from the epidemic that was swiping across Europe in Middle Ages, which killed one third of the population. Also, it's widely known that the very cause of killing thousands of natives Americans upon Europeans first encounter with them is their lack of immune to those diseases brought about by Europeans at that time, which,of course, is treatable easily with a help of development of vaccines. In our society, we are now heading to the extent where we can cure even cancers and AIDS. More and more people can be saved with our technology of medication, which was never thought of as possible before. Therefore, very reason why people live longer is the medication curing various kinds of sickness and diseases.
Moreover, every countries might have one or more time in their history when a lot of people died of hunger. For instance, in early 1950's, there was what is called "tough hill in Korea." from which more than 2 million people died of lack of food. This very phenomenon was caused by failure of that year's crop. Seen from this experience, whether or not certain time's harvest failure can put a thousands and millions of people's live in jeopardy was common even until recently. After the Industrial Revolution, the demand on food skyrocketed like unprecedented rate, thus the competition mounted up. Companies tried to come up with ways to make mass production of crops and meat possible,which, gradually, led to the development of some sorts. With more food available with much faster productivity, more people can be fed, which is the main source of life in the very first place.
Thanks to all the people who tried hard to invest and invent variety of medication and treatment, equal thanks to all those involved in making mass production of food possible. We now can enjoy not only much healthy life but also longer life on account of these people and the result of their hard work. | |