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Poor sleep may nudge the brain toward dementia, researchers find

By Timothy Hearn, Senior Lecturer in Bioinformatics, Anglia Ruskin University

Staring at the ceiling while the clock blinks 3am doesn’t only sap energy for the next day. A large, long-running US study of older adults has now linked chronic insomnia to changes inside the brain that set the stage for dementia.

The researchers, from the Mayo Clinic in the US, followed 2,750 people aged 50 and over for an average of five and a half years. Every year the volunteers completed detailed memory tests and many also…

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