Antioxidant defense is a research area that focuses on understanding the mechanisms by which the body protects itself against oxidative stress and damage caused by free radicals. Free radicals are highly reactive molecules that can damage cells and contribute to the development of various diseases, including cancer, diabetes, and neurodegenerative disorders. Antioxidants are molecules that neutralize free radicals and prevent them from causing damage to cells. Research in this area aims to identify new antioxidants, understand how they work, and explore their potential therapeutic applications in preventing or treating oxidative stress-related diseases. Studies in this field also investigate the role of antioxidants in maintaining overall health and wellness.