According to the researchers, naps throughout the day can be a primary symptom of dementia in older women.
The feeling of drowsiness over a five -year period is associated with the risk of dementia for women in the eighties.
It is estimated that 982,000 British dementia, but according to the Alzheimer’s Association, it will increase to 1.4 meters by 2040.
Memory loss, focus on focusing and mood changes are some of the symptoms of the story. But the new study, published in the journal NeurologyDisclosed sleep problems can also be a primary marker of the disease.
“Sleep is essential for cognitive health because it allows the brain to rest and rejuvenate and enhance our ability to think clearly and remember information,” said Dr. Yu Lang, a study author from the University of California.
“However, how changes in sleep and cognition over time and how these changes relate to the risk of dementia are known in the coming decades of life.”
For this study, the researchers reached 733 female participants with an average age of 83, who did not have mild cognitive disorder or dementia at the beginning of the study.
Participants have been pursued for more than five years – during which there were 164 participants of mild cognitive disorder and 93 dementia.
They worn wrist devices at the beginning and end of the study for three days to track sleep and boarding rhythm patterns.
The researchers looked at changes during bedtime and quality, day -to -day naps, and round the clock rhythm patterns.
After five years, the researchers saw a lot of changes in sleep patterns in more than half of the participants.
Participants crashed into three groups: sustainable sleep or little progress in sleep. Reduce night sleep; And increase drowsiness
Sleep reduction includes reduced quality and duration of bedtime, moderate increase in naps and worsens round the clock.
Increased drowsiness includes increased daytime and night sleep and night quality and quality, along with worsening the rhythm of the day.
The researchers then examined how these changes were related to the risk of dementia.
Of the stable sleep groups, 25 dementia has been created. In the sleeping group of the night, 39 dementia created the intellect. In the increasing drowsiness group, 29 dementia created.
The researchers then arranged in terms of age, education, race and hygiene, such as diabetes and hypertension, and found that participants in the drowsiness group had doubled the risk of dementia compared to the sustainable sleeping group.
However, no relationship has been found in the night sleep group.
Previous studies have also emphasized that people with irregular sleep patterns may increase the risk of the disease.
In that study also published in the journal Neurology In the year 2023, Scientists have evaluated health data of more than 88,000 people in the UK with an average age of 62 and pursued them on average seven years. They found that the risk of nervousness for those with the most irregular sleep is the highest.
Another study in 2024 carried brain scans of nearly 600 middle -aged people and had been sleeping for almost three years.
The last study does not prove that day -to -day drowsiness causes dementia. This only shows a forum.
