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    I have two daughters and one son. They are Mary. Laura and Eric. Mary is seven. Laura and Eric are five. They watch a lot of television, maybe five hours a day.

    I'm worried that it's too much. Should I limit（限制） their screen time?

Catherine

    The American Academy of Pediatrics（APP，美国科学会） says that older kids shouldn't watch more than1-2 hours of television every day, and that kids under the age of two should not watch any television. The shows kids watch should be educational. All in all, television shouldn't be a substitute（替代物）for activities like playing with friends, exercising or reading.