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Related Concept Videos

Aging01:26

Aging

537
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...
537
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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Pharmacodynamics in Geriatric Patients: Effects of Age01:27

Pharmacodynamics in Geriatric Patients: Effects of Age

157
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...
157

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Related Experiment Video

Updated: Jan 2, 2026

Author Spotlight: Automated Lifespan Monitoring – Discovering Aging Dynamics with the Lifespan Machine
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Measuring biological aging in humans: A quest.

Luigi Ferrucci1, Marta Gonzalez-Freire1, Elisa Fabbri1,2

  • 1Translational Gerontology Branch, Biomedical Research Center, National Institute on Aging, National Institutes of Health, Baltimore, MD, USA.

Aging Cell
|December 14, 2019
PubMed
Summary

Geroscience research suggests targeting aging mechanisms can prevent age-related diseases. Understanding aging pace and resilience may lead to interventions delaying disability and improving healthspan.

Keywords:
agingbiological aginghallmarks of aginginflammationmultimorbidityresiliencesenescence

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Area of Science:

  • Gerontology and Geroscience
  • Biomedical Gerontology
  • Aging Biology

Background:

  • The global population of individuals over 65 is rapidly increasing, with most experiencing multiple chronic diseases and disability.
  • Current clinical approaches often focus on symptom management rather than the root causes of age-related decline.
  • Geroscience posits that targeting fundamental aging processes can address age-related disease susceptibility.

Purpose of the Study:

  • To explore the connection between biological aging mechanisms and health trajectories.
  • To identify biomarkers for "aging faster" and test interventions for delaying age-related diseases.
  • To understand resilience mechanisms in successful aging for potential therapeutic applications.

Main Methods:

  • Correlating health dimensions with aging phenotypes such as autophagy, mitochondrial function, cellular senescence, and DNA methylation.
  • Measuring the pace of aging to identify individuals at higher risk of accelerated decline.
  • Investigating the dynamic changes in resilience mechanisms and their impact on stress responses.

Main Results:

  • Strong correlations identified between aging phenotypes and health dimensions.
  • Emerging focus on measuring aging pace to stratify risk and guide interventions.
  • Potential to identify and harness resilience mechanisms for healthier aging.

Conclusions:

  • Targeting the biological mechanisms of aging offers a novel approach to combatting age-related multimorbidity and disability.
  • Understanding individual aging trajectories and resilience is key to developing personalized interventions.
  • Harnessing resilience mechanisms could revolutionize medicine by promoting healthy longevity.