Oxidative stress refers to an imbalance between the production of free radicals (unstable molecules that can damage cells) and the body’s ability to counteract or detoxify their harmful effects through antioxidants. This imbalance can lead to cellular and tissue damage, contributing to aging and various diseases, including heart disease, cancer, and neurodegenerative disorders. Oxidative stress is influenced by factors like environmental pollutants, dietary choices, stress, and lifestyle habits.