阅读理解 Children who use mobile phones risk suffering memory loss, sleeping disorders and headaches, according to research published in the medical journal(期刊)The Lancet． Physicist Dr Gerard Hyland raised new fears over radiation caused by mobile phones and said under-18-year-olds, who represent a quarter of Britain’s 25 million mobile users, were more vulnerable(脆弱)because their immune systems(免疫系统)were less robust． Radiation is known to affect the brain rhythms(节律)and children are particularly vulnerable． The effect of microwaves(微波)from a mobile phone is a bit like interference on a radio．It has an impact on the stability(稳定)of cells in the body．The main effects are neurological(神经病学的), causing headaches, memory loss and also sleeping disorders． He said there was too much uncertainty about the potential(潜在的)dangers of mobile phones． “If mobile phones were a type of food, they simply would not be licensed(许可)because there is so much uncertainty surrounding their safety, ” he said． Hyland’s findings came as the government carried out a new task force to study the possible risks of mobile phones． A government commissioned(政府委托)inquiry into potential risks said in May that children should be discouraged from using mobile phones． Fresh evidence about the impact of mobile phones on children’s brains follows research in early November showing that hands-free mobile phone kits(用品)can significantly boost(促进)the brain’s exposure to radiation． Scientists agree that electromagnetic(电磁)radiation from mobile phones warms brain tissue(组织)although it remains unproven that they pose a human health risk． But Hyland said the real risk was from low intensity(强度)radiation known as non-thermal(热的)radiation, not brain heating． | 
