Does Poor Sleep Lead to Dementia?

December 11, 2014 8:00 PM

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Elderly people with sleep issues resulting in low nocturnal oxygenation and reduced time in deep sleep seemed to be at an elevated risk for cognitive decline and dementia, according to researchers.

In a prospective study that followed older men from sleep assessment to autopsy, the men were divided into quartiles based on the percentage of time spent with lower than normal blood oxygen levels during sleep. Those who spent the most time in an oxygen-deprived state were found to have almost four...

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