Those sleeping in late on a morning or taking time out to snooze in the afternoon are doubling their chance of getting Alzheimer's disease or dementia, it has been stated.
The University Hospital of Madrid in Spain studied the lives of 3,286 men and women aged 65 or over and looked into lifestyle issues such the number of hours the people had asleep, with the sample registering 140 people with the condition by the end of the testing stages.
Individuals sleeping over eight or nine hours a day are those most at risk of getting dementia in later life, particularly if they are taking time out to snooze in the afternoon.
Head of research at the Alzheimer's Society Dr Susanne Sorenson said of the results: "There is no apparent physiological link and it is unlikely that sleeping more than normal is a direct risk factor for dementia; it may simply be an early sign of a yet undiagnosed condition."
This week, researchers from the Albert Einstein College of Medicine in New York explained that a way to stave off dementia and Alzheimer's disease may be through doing a crossword a day, or another brain teaser to keep the brain at the top of its game.
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