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Signs of Terry Pratchett’s dementia appear in his books a decade before diagnosis

Gail P Sherman
Jan 28, 2026
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Image: Billion Photos / shutterstock.com

A new analysis of the work of Sir Terry Pratchett found his use of language was gradually deteriorating long before he was diagnosed with dementia. Writing in The Conversation, the authors of the study published in Brain Sciences point out that memory loss is but one symptom of dementia, with other cognitive issue…

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Gail P Sherman
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