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
Watching TV for too long will affect the child's interaction with other people, and over time, the child will lack experience in dealing with others.
 The so-called behavior problems refer to withdrawn personality, rude words and deeds, aggression against others, difficult to cooperate with others, and so on