In a paper published in the Journal of Pediatrics, researchers at a university medical school in the United States pointed out that after a follow-up survey of children from 2,702 families, it was found that if children watched TV for more than two hours a day before the age of 5, their risk of behavioural problems will more than double when they grow up. The so-called behavior problems refer to withdrawn personality, rude words and deeds, aggression against others, difficult to cooperate with others, and so on.
The statement 'There are a lot of contents in TV programs that can easily make children in a state of tension and fear for a long time' best explains the above argument.