(2015·孝感高三调研)Energy drinks are as harmful as drugs and should be banned from schools, according to a British government adviser.

　　Drinks such as Monster, Red Bull and Relentless combine sugar and caffeine (咖啡因) in such high quantities that children are becoming hyperactive (过度活跃的) and difficult to control.Some 500ml cans contain the equivalent of more than 13 teaspoons of sugar and 160mg of caffeine — which is about the same as in four cans of cola.

　　Yesterday, government adviser John Vincent warned，“Energy drinks are effectively another form of drugs.It has a hugely damaging effect on children's ability to concentrate, how they feel and it is having health effects.”

　　Evidence from teachers and pupils is that children who drink these cans may report feeling sick, shaky and dizzy.Claire Duggan, a school public health adviser, said some children report feeling unwell after downing the drinks.

　　Ian Fenn, headmaster of Burnage Media Arts College in Manchester, has banned the drinks following requests from staff.

　　He told BBC，“Staff came to me and said at a school where we are very conscious about the nutritional value of what students eat.We can't allow boys to bring in drinks that are really unhealthy for them and consume not one, but two or three.”

　　Some children even choose to have an energy drink for breakfast rather than a bowl of cereal.A survey published recently found that one in 20 teenagers goes to school on a can of energy drink.

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