A Spanish government-appointed committee of experts has recommended that smartphones sold in the country carry health warning labels. The advice comes amid mounting concern about the effects of smartphone use, particularly among young people. The experts published their findings in a 250-page report, seen by newspaper El País. The document details ways the government could crack down on what the panel calls a “public health epidemic”. Proposals include banning digital devices for kids under three and restricting their use for those between three and six, except in rare cases.