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Related Concept Videos

Primary Healthcare Services01:30

Primary Healthcare Services

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Primary care promotes wellness and prevents disease. This care includes health promotion, education, protection (such as immunizations), early disease screening, and environmental considerations. Settings providing this type of healthcare include physician offices, public health clinics, school nursing, and community health nursing.
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Health promotion allows a person to control the determinants of health, resulting in an improved health status. It enhances the quality of life and reduces premature deaths. Health promotion and illness prevention programs help people make beneficial choices to reduce the risk of disease and disabilities. There are three health promotion and illness prevention levels: primary, secondary, and tertiary prevention.
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Preventive Healthcare Services01:30

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Preventive healthcare services keep people healthy via frequent check-ups, screening, and counseling. They primarily aid in disease prevention rather than treating an acute or chronic illness. Preventive treatment also keeps individuals productive and energetic, allowing them to work well into their retirement years. Examples of preventive care services include:
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Disease surveillance is the systematic collection, analysis, and interpretation of health data essential to the planning, implementation, and evaluation of public health practice. This process integrates data dissemination to entities responsible for preventing and controlling disease, injury, and disability. Surveillance systems provide crucial information for action, helping public health authorities make informed decisions to manage and prevent outbreaks, ensure public safety, optimize...
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Healthcare Agencies II01:17

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There are various healthcare agencies in the United States—some of which are managed by religious institutions and others by different government branches.
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At the different levels of the healthcare system, we see varying methods of healthcare used. These methods include managed care systems, case management, and primary healthcare.
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Determining Soil-transmitted Helminth Infection Status and Physical Fitness of School-aged Children
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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
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Summary
This summary is machine-generated.

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.

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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.