A study published in
Nature Communications establishes a link between sleep and dementia as people age.
Sleeping six hours or less a night between the ages of 50 and 60 is associated with an increased risk of dementia, according to a new study of nearly 8,000 adults followed for more than 25 years.
Although the research, published in the journal
Nature Communications, which has been based on long-term survey data, has not been able to prove cause and effect, it does establish a link between sleep and dementia as people age.
The study showed an increased risk of dementia in those who sleep six hours or less a night between the ages of 50 and 60, compared to those who sleep for seven hours.
In addition, the researchers found that there was a 30% increase in the risk of dementia in people with short sleep patterns from the age of 50 to 70, regardless of cardiometabolic or mental health problems, which are known risk factors. for dementia.
The authors of the
INSERM analyzed data from a long-term study conducted by the
University College London (United Kingdom), which has monitored the health parameters of 7,959 British individuals since 1985.
All participants reported on the duration of sleep; But, in addition, around 3,900 used sleep monitoring devices at night to confirm their estimates.
More and more studies indicate that sleep patterns before the onset of dementia may also contribute to the development of the disease.
Sleeping time is related to dementia risk in older adults, 65 and older, but it is unclear if this association also exists for younger age groups.
“Many of us have had a poor night’s sleep and we probably know that it can have an impact on our memory and thinking in the short term, but it is unknown whether long-term sleep patterns can affect our risk of dementia,” says the researcher. Sara Imarisio.