Since television appearances in the early twentieth century and developed with rushing speed thanks to the advancement of science and technology, creating an important channel of information in social life. Today, television is the essential facilities in every household. Thanks to the development of science and technology, the public's increasingly large TV. The TV show topical project updates, hot, attractive attract viewers both in image and sound, both for viewers to see the reality of life has an impact on public perception. Additionally, after a period of stress, people can sit at home to relax through entertainment programs on television.
However, recent studies also indicate that their health I will be seriously affected if sitting in front of the TV for hours. Main Drawbacks of watching TV too long usually involves the following issues:
Sitting watching sedentary for too long and can strongly impact the health, easy to cause weight gain and increase the risk of obesity .
Looking at the screen too long in one position materials will seriously affect vision.
Watching television can lead to violent behavior, aggressive, especially in the action-drama and violence high.
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