@CNN: Kids are spending more time staring at screens, but there’s little scientific research about how it affects their health and development. Some lawmakers hope to change that. https://t.co/CjXw3dBsik https://t.co/rSiw0tab1D

@CNN: Kids are spending more time staring at screens, but there’s little scientific research about how it affects their health and development. Some lawmakers hope to change that. https://t.co/CjXw3dBsik https://t.co/rSiw0tab1D