Association Between The Oxidative Balance Score And Biological Aging Measured By Epigenetic Clock: Insight From The NHANES 1999-2002
Our bodies are constantly aging, but this process isn’t always uniform. While chronological age simply counts the years we’ve lived, “biological age” reflects the true wear and tear on our cells and tissues. One fascinating way scientists measure biological age is through “epigenetic clocks,” which analyze patterns of chemical tags on our DNA (called DNA methylation) that change predictably over time. A younger epigenetic age suggests a slower aging process.
Another important factor in aging is “oxidative stress,” an imbalance between harmful molecules called free radicals and beneficial antioxidants in the body. Too much oxidative stress can damage cells and contribute to age-related diseases. To understand an individual’s overall oxidative status, researchers use an “oxidative balance score” (OBS), which takes into account both dietary habits and lifestyle choices that either promote or counteract oxidative stress. A higher OBS indicates a better antioxidant defense system.
Recent research has explored the connection between these two indicators of health and aging. A study found that individuals with higher oxidative balance scores tended to have a lower epigenetic age, meaning their bodies appeared biologically younger than their chronological age. This association held true for both the dietary and lifestyle components of the oxidative balance score. These findings suggest that embracing a lifestyle rich in antioxidants, through diet and other healthy habits, may play a crucial role in slowing down the biological aging process.
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