In the last installment of our series on the trade-offs of technology, a discussion about screen time. How much is too much? And is there a right kind of screen time and a wrong kind? To answer that, we kind of need to know: What are screens doing to our children's brains? One person studying that is Dr. Megan Moreno, a professor of pediatrics at the University of Wisconsin. She'll talk with us on today's show about how media use affects kids. (07/27/2018)