Natural Dark
Essay by ZIYI YANG • October 1, 2017 • Essay • 589 Words (3 Pages) • 1,336 Views
With the development of science and technology, we gradually rely on artificial light, and forget the influence that darkness has brought to us. Writer Paul Bogard believes that we should protect the natural darkness. He builds his arguments by using a personal anecdote, authoritative sources, and allusions to art and history.
Bogard recounts his personal story as the beginning of his article. Bogard looks back on his childhood: “At my family’s cabin on a Minnesota lake, I knew woods so dark that my hands disappeared before my eyes.” He tries to grab readers’ attention on remembering they held natural darkness in past of the time. he helps audience to image a picture by his personal story about night darkness to shows the power of darkness and through his childhood memories he build argument for the indispensable value of natural darkness.
Bogard uses a scientific evidence as his authoritative source to shows why natural darkness is irreplaceable value of humans. He quotes the evidence from the World Health Organization to support his belief in the preservation of natural darkness. “Already the World Health Organization classifies working the night shift as a probable human carcinogen, and the American Medical Association has voiced its unanimous support for ‘light pollution reduction efforts and glare reduction efforts at both the national and state levels’.” He first makes the obvious claim that darkness is essential for sleep. He uses research scientific that human body needs darkness to produce hormone melatonin and enhance immunity to viruses, which prevent certain cancers from developing. After that, he talks about the negative effects of “short sleep” include “diabetes, obesity, cardiovascular disease and depression.” Bogard uses authoritative evidence to support the reason that people should preservation of natural darkness.
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