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

Oct 23, 2025

5 min

What is the ROS theory of aging? Unpacking oxidative stress and longevity

The concept of aging being caused by molecular damage dates back decades. Originally proposed in the 1950s by Denham Harman, the reactive oxygen species (ROS) theory of aging suggests that damage from unstable molecules called free radicals drives the process of aging.

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