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HSC 180: Public Health and the Aging Population

Health Across the Lifespan

Population Aging Trends

  • Categorization of Older Adults: Older adults are classified into three distinct groups based on age:

    • Young Old: Ages 65-74 years
    • Aged: Ages 75-84 years
    • Oldest Old: Ages 85 years and older

  • Baby Boomers: This demographic refers to the generation born following World War II, specifically from 1946 to 1964.

    • Characterized by a sharp increase in birth rate during this period.
    • A significant portion of this generation is now over 65 years old.

  • Gender Distribution: In older age groups, females significantly outnumber males, affecting various health dynamics and care needs.

Public Health Issues in an Aging Population

  • Health and Medical Care Needs: Generally, older adults tend to have poorer health and a higher need for medical services.

    • This presents a challenge regarding the growth of Medicare costs, which may reach unsustainable levels.

  • Quality of Life Factors: The quality of life during older age is increasingly linked to the lifestyle choices made during youth and middle age.

  • Public Health Challenges: The overarching challenges for public health concerning aging populations include:

    • Improving Health: Preventing disease and disability among older individuals.
    • Cost Management: Tackling how to control healthcare costs in a fair and equitable manner while improving health outcomes.

Health Status of Older Adults

  • Causes of Death: The leading causes of death among the elderly align closely with those of the general population, including:

    • Cardiovascular Disease (CVD)
    • Cancer

  • Self-Reported Health Statistics: Proportions of older adults reporting positive health statuses are as follows:

    • 80% of the Young Old (ages 65-74) report being in “good,” “very good,” or “excellent” health.
    • 78% of the Aged (ages 75-84) report similar health statuses.
    • 68% of the Oldest Old (85+ years) report being in “good,” “very good,” or “excellent” health.

Health Concerns in Older Adults

  • Common Health Concerns: Older adults face numerous health concerns, which include but are not limited to:
    • Medication Effects: Potential adverse effects from medications taken.
    • Osteoporosis: A condition affecting bone density and strength.
    • Falls: Risks associated with falls which can lead to severe injuries.
    • Vision and Hearing Impairment: Deterioration of sensory functions.
    • Oral Health Issues: Dental and oral health deterioration.
    • Alzheimer's Disease and Other Dementias: Cognitive decline and related disorders.
Osteoporosis

  • Definition: Osteoporosis is characterized by a reduction in bone mass and a deterioration of the microarchitecture of bone, which leads to increased fragility.

  • Consequences: The condition greatly increases the risk of fractures and subsequent disabilities, being particularly prevalent among post-menopausal women.

  • Risk Factors: Factors contributing to osteoporosis include:

    • Certain medications (e.g., corticosteroids)
    • Tobacco use
    • Alcohol consumption

  • Preventative Measures: Recommendations include bone density scans for women aged 65 and older to detect early signs of bone thinning.

    • Medications are available to reduce further bone loss.
Alzheimer’s Disease and Other Related Dementias

  • Dementia Definition: Refers to a spectrum of symptoms affecting cognitive function and social capabilities, impeding daily activities.

  • Alzheimer’s Disease: Identified as the most common form of dementia among the elderly, characterized by neurodegenerative processes that lead to cognitive decline.

    • Prevalence: The incidence of Alzheimer's increases significantly with age.
    • Burden: The disease places considerable burdens on affected individuals, their families, and the healthcare system at large.

  • Ongoing Research: Investigative efforts focus on understanding risk factors and developing treatments.

    • Influential Factors: Both genetic and non-genetic factors play significant roles in the disease's progression.
    • Studies indicate that regular physical activity and other healthy behaviors may offer protective benefits against the onset of dementia.
    • Although there is currently no known cure, some medications are available that may delay progression of symptoms.

Reducing Medical Costs in an Aging Population

  • Integration of Services: There is a critical need to integrate public health initiatives and medical services in order to mitigate the demand for medical care.

    • This integration is seen as a way to effectively reduce risk factors for disease and prolong the onset of chronic conditions, ultimately leading to decreased healthcare costs.

  • Integrated Healthcare Proposal: J.F. Fries and U.S. Surgeon General C.E. Koop (2008) advocated for a healthcare system designed to delay the emergence of chronic disabilities by reducing modifiable risk factors, which include:

    • Smoking
    • High dietary fat intake
    • Sedentary lifestyle
    • Neglecting safety measures such as seatbelt use.

Public Health & Healthy Longevity Framework

  • Framework Development: An overview of the Healthy Longevity Framework introduced by the Association of Schools and Programs of Public Health (ASPPH) in June 2025, part of advancements in public health 4.0.

Module To-Do List

  • Quiz Availability: Quiz 2 in Canvas is available today at 4:00 PM.
  • Due Date: The quiz is due on Friday, August 29, 2025, at 11:59 PM.
  • Time Limit: Students have 60 minutes to complete the quiz.
  • Attempts Allowed: Two attempts are permitted, but only one new attempt is available, with answers allowed only for previously incorrect questions.