The cell-phone has already became the communication tools that is nowadays more generally used, but before using the mobile telephone, you had better take down the glasses , especially the glasses of the metal shelf first . Because will produce electronic radiation while using the mobile telephone, and the metal spectacle frame is just a kind of conductor, lead radiation pleasing to the eye to with the brain , damage eyes , influences eyesight, make the brain transient and intensify, interfered the normal operation of the brain, caused thinking to be confused or suddenly presented the brain in a blank. Indicate according to a test of research center of recent British cellular telephone , the metal spectacle-frame obviously causes the electric magnetic field to strengthen, and the user increases to the absorption rate of radiation by 63%. While phoning with mobile telephone, if the metal spectacle-frame worn, should take down in time , so as not to do harm to health.