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Memory
Most commonly found in old age, Alzheimer's disease affects personality, cognitive function and the gradual erosion of memory. Why do people get it?
Picture: Human brain, Credit: Getty Images
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2000: How the World Sounded the Year You Were Born—成人快手 World Service Archive
The newly opened London Eye, the making of saints and predicting rainfall using stars
成人快手 World Service Archive
This programme was restored as part of the World Service archive project
