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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

Preventive Healthcare Services

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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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Public Health.

Ruixue Cai1, Chenlu Gao1, Lei Gao1

  • 1Massachusetts General Hospital, Boston, MA, USA.

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

Zeroth-generation immigrants experience poorer sleep and circadian health, leading to increased frailty and cognitive decline. Acculturative stress exacerbates these issues, highlighting the need for targeted health interventions.

Area of Science:

  • Gerontology
  • Sleep Science
  • Immigrant Health

Background:

  • Sleep and circadian health are vital for aging populations, impacting physical frailty and cognitive function.
  • Zeroth-generation immigrants, older adults reuniting with family in the US, face unique integration challenges and rely on family support.
  • Little research addresses the sleep-frailty-cognition link in this specific demographic.

Purpose of the Study:

  • To investigate the relationships between sleep/circadian rhythms and frailty/cognition in older Chinese immigrants in the US.
  • To compare sleep health and its associations with frailty and cognition between zeroth-generation and first-generation immigrants.
  • To explore the mediating role of acculturative stress in these relationships.

Main Methods:

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  • Recruitment of 200+ participants aged 65+ years.
  • Objective sleep/activity monitoring via actigraphy watches (10 days) and sleep diaries.
  • Comprehensive assessments including questionnaires (demographics, lifestyle, stress, health), cognitive tests (MMSE, memory, executive function), and physical measurements (grip strength, walking speed).

    • Main Results:

    • Zeroth-generation immigrants are anticipated to exhibit poorer sleep quality, shorter duration, increased daytime sleepiness, and disrupted rest-activity rhythms compared to first-generation immigrants.
    • Higher prevalence of frailty and worse cognitive performance are expected in zeroth-generation immigrants.
    • Stronger associations between poor sleep health, frailty, and cognitive decline are hypothesized, potentially mediated by acculturative stress.

    Conclusions:

    • This study will offer novel insights into sleep and circadian health challenges among zeroth-generation Chinese immigrants.
    • Findings will highlight the impact of these challenges on physical frailty and cognitive aging.
    • Results will inform culturally sensitive interventions and policies to promote health equity for this vulnerable group.