From the latest lesson:
Have you ever wondered why thinking too much makes you tired? A new study has found out some answers to this question. Researchers from the Paris Brain Institute looked at why mental effort makes us tired. They found that when people think a lot, the brain releases a chemical called glutamate. Too much glutamate upsets the brain's functions. It means the brain tells the body it is tired and that it must rest.
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This site is for ESL and EFL students wanting to learn news English. The site has English news readings and listening. There are two news lessons every week on news stories from across the world.
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