tabletsandtelevisions.Isallthisstaringbadfor us?Itmightbe,mainlybecauseaswestareatour devicesweareexposingourselvestobluelight. Bluelightisatypeofelectromagnetic(电磁 的)radiationwithaveryshortwavelengththat producesahighamountofenergy.Whileit?strue thatlightcandamageoureyesundercertaincircumstances,there?snoscientif...