@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/wpw2GRkGef https://t.co/IU0rIXaUJW

@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/wpw2GRkGef https://t.co/IU0rIXaUJW