People who have trouble sleeping are more likely to suffer memory problems when they are older, according to a new study.
Scientists found the amount and quality of sleep people get at night may affect their your memory later in life.
Researchers tested the sleep patterns of 100 people between the ages of 45 and 80 who were free of dementia. Half of the group had a family history of Alzheimer’s disease.
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| The new report says insomnia has substantial long-term effect on people |
Study author Doctor Yo-El Ju, of Washington University School of Medicine in St. Louis and a member of the American Academy of Neurology, said: 'Disrupted sleep appears to be associated with the build-up of amyloid plaques, a hallmark marker of Alzheimer’s disease, in the brains of people without memory problems.
'Further research is needed to determine why this is happening and whether sleep changes may predict cognitive decline.'
A device was placed on the participants for two weeks to measure sleep, whilst the participants diaries and questionnaires were also analyzed by researchers.
After the study, it was discovered that 25 per cent of the participants had evidence of amyloid plaques, which can appear years before the symptoms of Alzheimer’s disease begin.
The average time a person spent in bed during the study was about eight hours, but the average sleep time was 6.5 hours because they woke for a short time during the night.
The study found that people who woke up more than five times per hour were more likely to have amyloid plaque build-up compared to people who didn’t wake up as much.
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