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Related Concept Videos

Primary Healthcare Services01:30

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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 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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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:
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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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Public Health.

Yaqing Gao1, Robert Luben2, Shabina Hayat2

  • 1University of Oxford, Oxford, Oxfordshire, United Kingdom.

Alzheimer'S & Dementia : the Journal of the Alzheimer'S Association
|December 23, 2025
PubMed
Summary

High neuroticism, a personality trait, is linked to increased dementia risk and poorer cognitive function, even in mid-life. This study followed individuals for over 20 years, confirming the long-term association between neuroticism and cognitive decline.

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Area of Science:

  • Neuroscience
  • Psychology
  • Gerontology

Background:

  • Previous studies suggest a link between neuroticism and dementia, but often with short follow-ups and late-life assessments, raising causality concerns.
  • Personality changes in preclinical dementia could influence observed associations.
  • This study addresses limitations by examining mid- and late-life neuroticism over a long follow-up period.

Purpose of the Study:

  • To investigate the association between neuroticism and dementia risk in a large cohort with a wide age range.
  • To analyze the relationship between neuroticism and cognitive performance.
  • To assess long-term associations of neuroticism with dementia incidence across different life stages.

Main Methods:

  • Prospective cohort study (EPIC-Norfolk) with over 30,000 participants aged 39-79.
  • Neuroticism assessed via self-report scale; dementia ascertained through electronic linkage to health records.
  • Cox proportional hazards models and logistic regression used, adjusting for multiple covariates; cognitive tests administered to a subset.

Main Results:

  • Higher neuroticism scores correlated with increased dementia risk in a dose-response manner (14% higher risk per SD increase).
  • The association remained significant over 20 years of follow-up and across mid- and late-life assessment periods.
  • Neuroticism was linked to poorer performance in multiple cognitive domains, particularly verbal memory.

Conclusions:

  • Elevated neuroticism in both mid- and late-life is associated with increased long-term dementia risk.
  • High neuroticism is also linked to impaired cognitive function in individuals without dementia.
  • Findings highlight neuroticism as a potential risk factor for dementia and cognitive decline.