Denham Harman

Denham Harman was a scientist who developed the free radical theory of aging, proposing that our bodies age because of damage caused by unstable molecules called free radicals. These molecules are byproducts of normal cell processes and can harm cells, DNA, and tissues over time. Harman’s research suggested that reducing free radical damage might slow aging and improve health, leading to interest in antioxidants—substances that neutralize free radicals. His work has significantly influenced aging research, highlighting the importance of managing oxidative stress to promote longevity and well-being.