From the article: "Watching television or videos is discouraged for babies younger than 2 because studies suggest it could harm their development, a pediatricia

From the article: "Watching television or videos is discouraged for babies younger than 2 because studies suggest it could harm their development, a pediatricians’ group said Tuesday." But you say: "There is a balance is that balance is unique to each child." How do you know that there "is a balance unique to each child"? Do you have studies to backup your assertion similar to those cited in the article?