Can you tell me more about the recommended 1 hour media limit?

Posted under Ask the Mediatrician.

Q: When we hear that children should not be exposed to more than 1 hour of screen time per day, does that mean that all media are created equal? For example, are watching a movie, watching an age-appropriate TV show, and playing an interactive children’s website game all the same? What are the concerns about and benefits of each?
Answered by Dr. Michael Rich, the Mediatrician