Saturday, April 18, 2009

'Sleeping longer linked to dementia'

The Hindu

London (PTI): It's time to cut down on sleep for those who love to spend more time on bed, for a new study says that sleeping longer could raise a person's risk of developing Alzheimer's or dementia.

Researchers in Europe have carried out the study and found the link between sleeping longer and memory loss in old age -- in fact, those who stay on bed for more than nine hours could be twice as likely to develop dementia.

They have based their findings on an analysis of sleep patterns of a group of people.

And, the findings revealed that those who indulged in sleeping and napping for more than nine hours daily were 2.18 times more likely to end up with a degenerative condition like dementia or Alzheimer's disease.

In fact, the results were adjusted for smoking and drinking habits, age and level of education.

People who got the least amount of sleep, categorised as less than five hours a night, could also expect a slightly increased risk, the study suggested. However, the researchers said sleeping longer may be an.....read the whole article

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