Oxidative Stress: What It Is and Why It Matters

Understanding oxidative stress is key to protecting your health. When working with oxidative stress, an imbalance between reactive molecules and the body’s defense systems. Also known as oxidative imbalance, it can disrupt normal cell function.

Free radicals, highly reactive oxygen‑containing molecules are the primary drivers of this imbalance. They are produced during normal metabolism and when you’re exposed to pollutants, UV light, or intense exercise. When the production of free radicals outpaces the body’s ability to neutralize them, cellular damage, injury to proteins, lipids, and DNA occurs. This damage accelerates aging and can trigger chronic diseases.

How the Body Fights Back

Antioxidants, molecules that donate electrons to stabilize free radicals are the main line of defense. Vitamins C and E, selenium, and phytochemicals from fruits and vegetables all act as antioxidants. By donating electrons, they neutralize free radicals and reduce the cascade of cellular damage. In short, antioxidants counteract oxidative stress, helping maintain tissue health.

These three entities—oxidative stress, free radicals, and antioxidants—are tightly linked. Oxidative stress encompasses free radicals, free radicals cause cellular damage, and antioxidants intervene to restore balance. Understanding this chain lets you make smarter lifestyle choices, like boosting antioxidant intake and limiting exposure to oxidative triggers.

Below you’ll find a curated set of articles that dive deeper into related health topics, from throat care to gout medication, brain injury effects, and more. Each piece adds a piece to the puzzle of how oxidative stress influences various parts of the body, offering practical tips you can apply right away.