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家用电器在给人们带来方便的同时,也给环境造成子一定污染。这就是“家电病”。我们应该了解“家电病”产生的原因,才能更好地注意预防与减少“家电病”造成的污染和危害。 灯光:长期在灯光下学习和工作,因亮度过强或过弱,会加重眼睛的疲劳,出现头昏、眼花等症状。儿童和青少年近视或假性近视比例逐年上升的主要原因与此很有关系。适量的紫外线照射有利于人体的生长发育,但医学证明紫外线照射超量易使人患皮肤癌。同时,荧
Household appliances to bring convenience to people at the same time, but also to the environment caused by a certain pollution. This is the “appliance disease.” We should understand the causes of “home appliances disease” in order to better pay attention to prevent and reduce the “household appliances disease” caused by pollution and harm. Light: long-term learning and work in the light, because the brightness is too strong or too weak, will increase the eye fatigue, dizziness, vertigo and other symptoms. The main reason why the proportion of myopia or pseudo-myopia in children and adolescents are increasing year by year is closely related to this. The right amount of UV radiation is beneficial to the growth and development of the human body, but medical evidence of ultra-violet radiation easily causes skin cancer. At the same time, Ying