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Determining Soil-transmitted Helminth Infection Status and Physical Fitness of School-aged Children
Published on: August 22, 2012
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Public Health.
Ting Shen1, Hui Chen1, Mengjia Zhao1
1Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
Alzheimer'S & Dementia : the Journal of the Alzheimer'S Association
|December 23, 2025
Summary
Moderate weekend catch-up sleep, defined as extending sleep over weekends to compensate for weekday sleep loss, was linked to a lower dementia risk. This finding suggests sleep timing may play a role in dementia prevention.
Area of Science:
- Neuroscience
- Epidemiology
- Sleep Medicine
Background:
- Healthy sleep duration is crucial for dementia prevention.
- The impact of weekend catch-up sleep on dementia risk remains unclear.
Purpose of the Study:
- To investigate the association between weekend catch-up sleep and the risk of all-cause dementia.
- To determine if weekend sleep extension modifies the relationship between weekday sleep duration and dementia risk.
Main Methods:
- Utilized UK Biobank data from 83,776 adults aged 50+.
- Assessed sleep duration using wrist accelerometers and machine learning.
- Defined weekend catch-up sleep as the difference in sleep duration between weekend and weekdays.
- Followed participants for incident all-cause dementia using Cox regression models.
Main Results:
- Moderate weekend catch-up sleep (1-1.5 hours) was associated with a significantly lower dementia risk (HR: 0.64, 95% CI: 0.49-0.86).
- This association was more pronounced in individuals with weekday sleep duration less than 8 hours.
- No significant association was found for participants sleeping 8 or more hours on weekdays.
Conclusions:
- Moderate weekend catch-up sleep shows a significant association with reduced dementia risk.
- Further research is necessary to confirm these findings and establish optimal sleep durations for dementia prevention.
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