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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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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.
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, Cornelia M Van Duijn1, Thomas J Littlejohns1

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

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

High neuroticism is linked to lower omega-3 fatty acids, like docosahexaenoic acid (DHA), increasing dementia risk. This suggests cerebrovascular pathways may explain the connection between personality traits and cognitive decline.

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Area of Science:

  • Neuroscience
  • Metabolomics
  • Psychiatry

Background:

  • Neuroticism is a risk factor for dementia, but biological links are unclear.
  • Metabolites, products of metabolism, may illuminate the association between neuroticism and dementia.
  • Investigating metabolic pathways offers insights into dementia risk.

Purpose of the Study:

  • To explore the relationship between neuroticism and metabolites.
  • To investigate the association between specific metabolites and dementia risk (all-cause, Alzheimer's, vascular).
  • To examine the role of metabolites in the link between neuroticism and dementia.

Main Methods:

  • Utilized UK Biobank data from 215,624 participants.
  • Employed linear regression to assess neuroticism-metabolite associations.
  • Applied Cox regression and Mendelian randomization to evaluate causality and dementia risk.

Main Results:

  • Neuroticism associated with 119 out of 249 metabolites.
  • Lower levels of omega-3 fatty acids (e.g., docosahexaenoic acid) linked to lower neuroticism and reduced dementia risk.
  • Higher omega-6/omega-3 ratio associated with increased neuroticism and dementia risk, particularly vascular dementia.

Conclusions:

  • Neuroticism is associated with reduced omega-3 fatty acids (DHA).
  • Lower DHA may elevate dementia risk via cerebrovascular mechanisms.
  • Further research is needed to confirm the causal pathway with longitudinal data.