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The Guardian - UK
The Guardian - UK
Politics
Michael Goodier and Raphael Boyd

Dementia: five charts that help explain Britain’s biggest killer

graphic of head of person in silhouette with fading at back of head
Dementia affects more than 55m people worldwide – with that number expected to triple by 2050. Composite: Guardian Design/Getty Images

The number of people living with dementia in England is at an all-time high, with close to half a million diagnosed cases as of June 2024.

Dementia – Britain’s biggest killer – is an umbrella term for many conditions and affects more than 55 million people worldwide. In England, about 7,000 people are diagnosed every month.

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