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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.
In 1978, international leaders convened in Alma-Ata, Kazakhstan, for what would be a pivotal event in global health. The Alma-Ata Declaration was the first to call...
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Levels of Health Promotion and Illness Prevention01:26

Levels of Health Promotion and Illness Prevention

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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.
In primary prevention, actions taken before disease onset prevent the disease from...
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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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Principles of Disease Surveillance01:26

Principles of Disease Surveillance

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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

Healthcare Agencies II

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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.
Parish nursing is a growing specialty nursing profession that focuses on holistic healthcare, health promotion, and illness prevention. It blends professional nursing practice with a health ministry, focusing on health and healing within the context of a Christian community. Parish nurses serve as health educators, referral sources,...
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Methods Of Healthcare Delivery System01:26

Methods Of Healthcare Delivery System

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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.
Managed Care System:
The managed care system is designed to control the cost while maintaining the quality of care. The patient's care from admission to discharge is planned by the primary care provider or the case manager, also known as the gatekeeper. In a managed care system, the number of care providers is...
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Related Experiment Video

Updated: Jan 8, 2026

Determining Soil-transmitted Helminth Infection Status and Physical Fitness of School-aged Children
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Determining Soil-transmitted Helminth Infection Status and Physical Fitness of School-aged Children

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Public Health.

Bo Zhao1, Shaojiong Zhou1, Jie Chang2

  • 1Department of Neurology & Innovation Center for Neurological Disorders, Xuanwu Hospital, Capital Medical University, National Center for Neurological Disorders, Beijing, Beijing, China.

Alzheimer'S & Dementia : the Journal of the Alzheimer'S Association
|December 23, 2025
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Summary
This summary is machine-generated.

Catching up on sleep during weekends can lower dementia risk, especially vascular dementia, if weekday sleep is insufficient. However, excessive weekend sleep after too much weekday sleep may increase vascular dementia risk.

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Area of Science:

  • Neuroscience
  • Public Health
  • Sleep Medicine

Background:

  • Sleep deprivation is a known risk factor for dementia.
  • The impact of weekend recovery sleep (WRS) on dementia risk is not well understood.

Purpose of the Study:

  • To investigate the association between WRS and the risk of developing dementia.
  • To determine optimal sleep durations for mitigating dementia risk.

Main Methods:

  • A prospective cohort study of 88,592 adults aged 40-79 from the UK Biobank.
  • Wrist accelerometers measured weekday and weekend sleep durations.
  • Cox proportional hazards models and restricted cubic splines analyzed dementia incidence.

Main Results:

  • Optimal weekday sleep durations identified to minimize dementia risk.
  • Longer WRS reduced all-cause dementia and vascular dementia risk following insufficient weekday sleep.
  • Extended WRS after prolonged weekday sleep was associated with increased vascular dementia risk.

Conclusions:

  • Adequate WRS can mitigate dementia risk, particularly vascular dementia, subsequent to insufficient weekday sleep.
  • Appropriate WRS is crucial for cognitive health and dementia risk reduction.