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Articles related to focusing on healthy aging, prevention, mobility, cognition, nutrition, independence, and caregiving support.

5 min

Which two theories claim that damage is caused by unstable oxygen molecules?

Billions of unstable oxygen molecules, known as free radicals, are produced in our bodies every day, causing a cascade of cellular damage. Understanding **which two theories claim that damage is caused by unstable oxygen molecules** is fundamental to grasping the biological basis of aging and the role of oxidative stress in the body's decline.

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3 min

What is the mitochondrial free radical theory of aging? A Comprehensive Guide

First proposed by Denham Harman in the 1950s and later updated, the mitochondrial free radical theory of aging suggests that accumulated oxidative damage to cells is a major driving force behind the aging process. This foundational concept in gerontology provides a compelling explanation for the progressive functional decline observed in aging organisms.

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