Sleeping six hours or less per night in your 50s and 60s is associated with an increased risk of dementia, according to a new study of nearly 8,000 British adults followed for more than 25 years.
Scientists said that while the research, which was based on data from a long-running survey, could not prove cause and effect, it did draw a link between sleep and dementia as people age.
The study, published Tuesday in the journal Nature Communications, showed a higher risk of dementia in those sleeping six or fewer hours per night at the ages of 50 or 60, compared to those who have a “normal” seven hours in bed.
There was also a 30 percent…
