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Aging

Aging

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.
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The Effect of Aging on Tissues

The Effect of Aging on Tissues

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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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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Related Experiment Video

Updated: Jan 31, 2026

Evaluating the Function of the Foot Core System in the Elderly

Evaluating the Function of the Foot Core System in the Elderly

Published on: March 11, 2022

[Successfully aging elderly.]

Rino Scuccato¹

¹Neurologo libero professionista, Vicenza.

Recenti Progressi in Medicina

|December 20, 2018

Summary

Discover the rare phenomenon of "successful aging" where a small percentage of elderly individuals maintain cognitive and sensory abilities for an active, independent life. These remarkable stories highlight an uncommon yet aspirational path to growing old.

Area of Science:

Gerontology
Neurology
Sociology

Background:

A small fraction of individuals aged 80-90 experience successful aging, characterized by preserved cognitive and sensory functions.
These individuals lead active, independent lives with maintained social relationships, defying typical age-related limitations.

Purpose of the Study:

To explore and share narratives of "successful old age."
To address the misconception that this uncommon aging process is universally attainable.

Main Methods:

Qualitative analysis of anecdotal evidence and case studies.
Observational insights into the lives of exceptionally healthy older adults.

Main Results:

Highlights the existence of individuals who remain highly functional and engaged in later life.

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Published on: July 5, 2017

Methods to Study Changes in Inherent Protein Aggregation with Age in Caenorhabditis elegans

Methods to Study Changes in Inherent Protein Aggregation with Age in Caenorhabditis elegans

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Related Experiment Videos

Last Updated: Jan 31, 2026

Evaluating the Function of the Foot Core System in the Elderly

Evaluating the Function of the Foot Core System in the Elderly

Published on: March 11, 2022

Improving Strength, Power, Muscle Aerobic Capacity, and Glucose Tolerance through Short-term Progressive Strength Training Among Elderly People

Improving Strength, Power, Muscle Aerobic Capacity, and Glucose Tolerance through Short-term Progressive Strength Training Among Elderly People

Published on: July 5, 2017

Methods to Study Changes in Inherent Protein Aggregation with Age in Caenorhabditis elegans

Methods to Study Changes in Inherent Protein Aggregation with Age in Caenorhabditis elegans

Published on: November 26, 2017

Illustrates that "successful aging" is an uncommon outcome, often misunderstood by the general public.

Conclusions:

"Successful aging" represents a distinct, albeit rare, trajectory in later life.
The experiences of these individuals offer unique insights into maintaining quality of life in advanced age.