Antioxidants play a vital role in maintaining health by neutralizing free radicals, which can cause oxidative stress and damage cells. This oxidative stress has been implicated in numerous diseases, including cancer, cardiovascular disease, and neurodegenerative disorders. Antioxidants, found in various fruits, vegetables, nuts, and grains, help protect the body from this cellular damage. By supporting the immune system and reducing inflammation, they promote overall health and longevity, emphasizing the importance of including antioxidant-rich foods in the diet.