Document Type

Book Chapter

Publication Date

4-25-2025

Keywords

aging, cellular deterioration, entropy, oxidative stress, wear and tear theory

Disciplines

Developmental Psychology

Abstract

The wear and tear theory of aging is an idea proposed by German biologist, Dr. August Wiesmann, in 1882. The theory suggests that aging results from a gradual deterioration of the cells and tissues of the body via wear and tear, oxidative stress, exposure to radiation, toxins, or other deteriorative processes. It suggests that living organisms “wear out” over time with repeated use and increased stress on the body. This concept is similar to the idea that objects such as automobiles deteriorate or wear out as they are used repeatedly over time. Because people observe the wear and tear on these objects, this theory fits in with their perception of how humans age as well. Therefore, the concept is very popular and has been accepted by many.

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