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Related Concept Videos

Aging01:26

Aging

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Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
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Pharmacodynamics in Geriatric Patients: Effects of Age01:27

Pharmacodynamics in Geriatric Patients: Effects of Age

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Age-related pharmacokinetic changes are extensively documented, but understanding age-related pharmacodynamic alterations is relatively limited. This knowledge gap can be partly attributed to the complexity of developing appropriate measures of drug responses compared to bioanalytical methods for determining drug concentrations.Most information regarding age-related differences in human pharmacodynamics originates from cross-sectional studies. However, these studies assume that observed mean...
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Drug Dosing: Geriatric Patients01:15

Drug Dosing: Geriatric Patients

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Elderly individuals encompass a diverse population with varying degrees of age-related physiological changes. Defining the elderly presents challenges, as the geriatric population is often arbitrarily categorized as individuals older than 65. However, many individuals in this group lead active and healthy lives, with an increasing number surpassing 85 years and falling into the older elderly category. Physiological changes associated with aging impact performance capacity and homeostatic...
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The Effect of Aging on Tissues01:19

The Effect of Aging on Tissues

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Several body functions deteriorate with age. The external signs of aging are easily identifiable. For example, the skin becomes dry, less elastic, and thins out, forming wrinkles. The skin of the face begins to appear looser due to a decrease in the levels of elastic and collagen fibers in the connective tissue. Additionally, melanin production in the hair follicle decreases with age, resulting in gray hair. Moreover, the senses of sight and hearing decline, so glasses and hearing aids may...
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Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution01:00

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Distribution

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Drug distribution in the human body is influenced by several factors, including plasma protein concentration, body composition, blood flow, tissue-protein concentration, and tissue fluid pH. Among these, changes in plasma protein concentration and body composition due to aging significantly affect how drugs are distributed within the body. Specifically, aging is associated with a decrease in albumin levels by about 10% and an increase in α1-acid glycoprotein levels. These alterations are...
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Cross-Sectional Research01:50

Cross-Sectional Research

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In cross-sectional research, a researcher compares multiple segments of the population at the same time. If they were interested in people's dietary habits, the researcher might directly compare different groups of people by age. Instead of following a group of people for 20 years to see how their dietary habits changed from decade to decade, the researcher would study a group of 20-year-old individuals and compare them to a group of 30-year-old individuals and a group of 40-year-old...
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Related Experiment Video

Updated: Dec 17, 2025

Highlighting and Reducing the Impact of Negative Aging Stereotypes During Older Adults' Cognitive Testing
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Highlighting and Reducing the Impact of Negative Aging Stereotypes During Older Adults' Cognitive Testing

Published on: January 24, 2020

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Cohort differences among aging populations: An update.

Ronald L Ettinger, Leonardo Marchini

    Journal of the American Dental Association (1939)
    |June 29, 2020
    PubMed
    Summary
    This summary is machine-generated.

    Older adults are retaining more teeth due to varying historical and sociodental influences across different birth cohorts. Understanding these cohort differences is key for personalized dental care.

    Keywords:
    Agingcohort studiesdental care service usehistorysocial behavior

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    Area of Science:

    • Gerontology
    • Dental Public Health
    • Sociology

    Background:

    • The U.S. population is aging, with older adults increasingly retaining natural teeth.
    • This demographic shift necessitates understanding the diverse oral health needs of this population.

    Purpose of the Study:

    • To analyze historical and socioeconomic influences on dental care utilization across different birth cohorts.
    • To update previous research by examining specific cohorts born between 1920 and 1980.

    Main Methods:

    • Literature review synthesizing historical, socioeconomic, and dental history data.
    • Analysis of influences impacting attitudes and expectations toward healthcare and dental services for specific birth cohorts.

    Main Results:

    • Identified significant cohort differences in health behaviors, including attitudes toward dentistry.
    • Observed variations in dental care service utilization patterns among different birth cohorts.

    Conclusions:

    • Dental care service use and attitudes toward dentistry vary significantly between birth cohorts.
    • Dentists must consider these cohort-specific differences and individual patient factors for tailored, age-appropriate oral healthcare.