Oxidative Stress

Oxidative stress can contribute to a wide range of health problems.

By Cathy Wong | Reviewed by Richard N. Fogoros, MD

Updated February 27, 2018

“Oxidative stress occurs when free radicals overwhelm the body’s defense against their harmful effects. A natural byproduct of metabolism, free radicals are a type of unstable molecule. When left unchecked, free radicals can damage your DNA by robbing other molecules of their electrons (a process known as “oxidation”). In recent years, scientists have linked oxidative stress to aging and a number of diseases. However, some research suggests that antioxidants found in certain natural substances may enhance your health by fighting oxidative stress.”

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Oxidative Stress and Your Health

Oxidative stress may contribute to the development of many diseases and chronic conditions, including:

•Age-related macular degeneration

•Atherosclerosis

•Cancer

•Chronic obstructive pulmonary disease

•Chronic fatigue syndrome

•Diabetes

•Glaucoma

•Heart disease

•Neurodegenerative diseases (such as Parkinson’s and Alzheimer’s disease)

•Inflammation

•Insulin resistance

•Rheumatoid arthritis

•Stroke